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This chapter describes the PA-4T+ port adapter and contains the following sections:
The PA-4T+ provides the following electrical interfaces:
 |
Note The PA-4T+, shown in Figure 1-1, provides enhanced performance over the PA-4T, shown in Figure 1-2. To determine if a PA-4T+ or PA-4T is installed in your router, view the port adapters' faceplate labels or use the show diag command to view installed interface types. |
The PA-4T+ provides four synchronous serial ports, and each port supports full-duplex operations at T1 and E1 speeds. A single port can support up to E2 speeds.
Speed is controlled by three variables:
The CSU/DSU determines the maximum speed of the full-duplex port. No configuration is necessary. If a CSU/DSU runs at a maximum speed of 1.55 Mbps (T1 speed), using only one port in the port adapter will not make this CSU/DSU run at E2 speed. On the other hand, if a CSU/DSU is capable of E2 speed (8 Mbps), this CSU/DSU will take the maximum bandwidth of the port adapter. To ensure this speed, no other port can be used. If you use another port, the speed of the CSU/DSU capable of E2 speed is reduced, because the port adapter shares the bandwidth between the two ports.
The PA-T4+ maximum speed can be attained only if the maximum aggregate speed per port adapter is 8 Mbps (E2) when only one full-duplex port is in use. When two full-duplex ports are in use, the maximum speed for each is 4 Mbps. When four full-duplex ports are in use, the maximum speed for each is 1.55 Mbps (T1) or 2.048 Mbps (E1).
The PA-4T+ provides four channel-independent, synchronous serial ports that support full-duplex operation at T1 (1.544-Mbps) and E1 (2.048-Mbps) speeds. Each port supports any of the available interface types:
EIA/TIA-232, which is the most common interface standard in the U.S., supports unbalanced circuits at signal speeds up to 64 kbps. EIA/TIA-449, which supports balanced (EIA/TIA-422) and unbalanced (EIA/TIA-423) transmissions, is a faster (up to 2 Mbps) version of EIA/TIA-232 that provides more functions and supports transmissions over greater distances. The EIA/TIA-449 standard was intended to replace EIA/TIA-232, but it was not widely adopted.
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Note The EIA/TIA standards were referred to as recommended standards called RS-232 and RS-449 prior to their acceptance by the ANSI committee. |
The resistance to convert to EIA/TIA-449 was due primarily to the large installed base of DB-25 hardware and to the larger size of the 37-pin EIA/TIA-449 connectors, which limited the number of connections possible (fewer than is possible with the smaller, 25-pin EIA/TIA-232 connector).
EIA-530, which supports balanced transmission, provides the increased functionality, speed, and distance of EIA/TIA-449 on the smaller, DB-25 connector used for EIA/TIA-232. The EIA-530 standard was created to support the more sophisticated circuitry of EIA/TIA-449 on the large number of existing EIA/TIA-232 (DB-25) hardware instead of the larger, 37-pin connectors used for EIA/TIA-449. EIA-530 refers to the electrical specifications of EIA/TIA-422 and EIA/TIA-423. The specification recommends a maximum speed of 2 Mbps. EIA-530 is used primarily in the United States.
The V.35 interface is most commonly used in the United States and throughout Europe, and is recommended for speeds up to 48 kbps. The X.21 interface uses a 15-pin connection for balanced circuits and is commonly used in the United Kingdom to connect public data networks. X.21 relocates some of the logic functions to the data terminal equipment (DTE) and data communications equipment (DCE) interfaces and, as a result, requires fewer circuits and a smaller connector than EIA/TIA-232.
All interface types except EIA-530 can be individually configured for operation with either external (DTE mode) or internal (DCE mode) timing signals; EIA-530 operates with external timing only. In addition, all VIP2 serial interface types support nonreturn to zero (NRZ) and nonreturn to zero inverted (NRZI) format, and both 16-bit and 32-bit cyclic redundancy checks (CRCs). The default configuration is for NRZ format and 16-bit CRC. You can change the default settings with software commands. (For more information, see "Configuring the PA-4T+ Interfaces.")
There is no default mode or clock rate set on the VIP2 serial ports, although an internal clock signal is present on all ports for DCE support. The internal clock also allows you to perform local loopback tests without having to terminate the port or connect a cable. (All interface types except X.21 DTE support loopback.) To use the port as a DCE interface, you must set the clock rate and connect a DCE adapter cable. To use the port as a DTE interface, you need only connect a DTE adapter cable to the port. Because the serial adapter cables determine the mode and interface type, the PA-4T+ interface becomes a DTE when a DTE cable is connected to it.
If a DTE cable is connected to a port with a clock rate set, the DTE ignores the clock rate and uses the external clock signal that is sent from the remote DCE. For a brief description of the clockrate command, see "Configuring the PA-4T+ Interfaces." For complete command descriptions and instructions, see the publications listed in the section "Related Documentation" section.
The PA-4T+ provides up to four synchronous serial interfaces. Each interface allows a maximum bandwidth of 2.048 Mbps; the speed depends on the type of electrical interface used. Use EIA/TIA-232 for speeds of 64 kilobits per second (kbps) and below, and use X.21, EIA/TIA-449, V.35, or EIA-530 for higher speeds.
Serial signals can travel a limited distance at any given bit rate; generally, the slower the baud rate, the greater the distance. All serial signals are subject to distance limits beyond which a signal degrades significantly or is completely lost.
Table 1-1 lists the recommended (standard) maximum speeds and distances for each PA-4T+ serial interface type. The recommended maximum rate for V.35 is 2.048 Mbps.
| EIA/TIA-232 Distances | EIA/TIA-449, X.21, V.35, EIA-530 Distances | ||||
|---|---|---|---|---|---|
| Rate (bps) | Feet | Meters | Feet | Meters | |
2400 | 200 | 60 |
| 4,100 | 1,250 |
4800 | 100 | 30 |
| 2,050 | 625 |
9600 | 50 | 15 |
| 1,025 | 312 |
19200 | 25 | 7.6 |
| 513 | 156 |
38400 | 12 | 3.7 |
| 256 | 78 |
56000 | 8.6 | 2.6 |
| 102 | 31 |
1544000 (T1) | - | - |
| 50 | 15 |
Balanced drivers allow EIA/TIA-449 signals to travel greater distances than EIA/TIA-232. The recommended distance limits for EIA/TIA-449 shown in Table 1-1 are also valid for V.35, X.21, and EIA-530. EIA/TIA-449 and EIA-530 support 2.048-Mbps rates, and V.35 supports 2.048-Mbps rates without any problems; we do not recommend exceeding published specifications for transmission speed versus distance. Do so at your own risk.
The PA-4T+ contains the enabled LED, standard on all port adapters, and one status LED for each port. After system initialization, the enabled LED goes on to indicate that the PA-4T+ has been enabled for operation. (The LEDs are shown in Figure 1-3.)
The following conditions must be met before the PA-4T+ is enabled:
If any of the above conditions are not met, or if the initialization fails for other reasons, the enabled LED will not go on. Table 1-2 lists port LED status indications.
| LED Label | Color | State | Function |
|---|---|---|---|
EN | Green | On | Indicates ports are ready. |
Green | On | DTE---Transmit data out. DCE---Transmit data in. | |
TC | Green | On | DTE---Transmit clock in. DCE---Transmit clock in (TXCE). |
RD | Green | On | DTE---Receive data in. DCE---Receive data out. |
RC | Green | On | DTE---Receive clock in. DCE---Receive clock out. |
LB/CD | Green | On | Indicates DTR, DSR, RTS, CTS, or DCD is active. |
Green | Flashing | Indicates RTS, CTS, or DCD is sending and receiving data in half-duplex mode. | |
Yellow | On | Indicates local loop or internal loop active. |
The following sections describe the serial receptacles on the PA-4T+ and the cables and pinouts for the various serial interface cables.
The PA-4T+ and adapter cables allow a high density of interface ports, regardless of the size of the connectors typically used with each electrical interface type. All ports use an identical 60-pin D-shell receptacle that supports all interface types. Each port requires a serial adapter cable, which provides the interface between the high-density serial port and the standard connectors that are commonly used for each electrical interface type.
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Note The adapter cable determines the electrical interface type and mode of the port (DTE or DCE) to which it is connected. |
The network end of the cable is an industry-standard connector for the type of electrical interface that the cable supports. For most interface types, the adapter cable for DTE mode uses a plug at the network end, and the cable for DCE mode uses a receptacle at the network end. Exceptions are V.35 adapter cables, which are available with either a V.35 plug or a receptacle for either mode, and the EIA-530 adapter cable, which is available only in DTE mode with a DB-25 plug at the network end. The mode is labeled on the molded plastic connector shell at the ends of all cables except V.35 (which uses the standard Winchester block-type connector instead of a molded plastic D shell).
Following are the available interface cable options (and product numbers) for the mode and network-end connectors for each cable:
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Note For cable pinouts, see the "PA-4T+ Port Adapter Cable Pinouts" section. |
Figure 1-4 shows the serial port adapter cables for connection from the PA-4T+ port adapters to your network.
Metric (M3) thumbscrews are included with each port adapter cable to allow connections to devices that use metric hardware. Because the PA-4T+ uses a special, high-density port that requires special adapter cables for each electrical interface type, we recommend that you obtain serial interface cables from the factory.
The router end of all EIA/TIA-232 adapter cables is a high-density 60-pin plug. The network end of the adapter cable is a standard 25-pin D-shell connector (known as a DB-25) that is commonly used for EIA/TIA-232 connections. Figure 1-5 shows the connectors at the network end of the adapter cable.
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Note The system console and auxiliary ports on the Route Switch Processor (RSP) in the Cisco 7500 series also use EIA/TIA-232 connections; however, the PA-4T+ interfaces support synchronous serial connections, and the console and auxiliary ports only support asynchronous connections. Use caution when connecting EIA/TIA-232 cables to the PA-4T+ receptacles. |
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Note Do not use the Cisco Systems-provided EIA/TIA-232 adapter cable CAB-232MT= to connect a PA-4T+ interface that is configured for DTE mode directly to an NEC - NEXTSTAR 1E model C4969 MD/SAC unit interface that is configured for DCE mode. This action will keep transmit and receive data signals from being properly exchanged between the two interfaces. Instead, you must connect an additional, intermediate adapter cable---with standard EIA/TIA-232 DB-25 connectors at both ends---from the network end of CAB-232MT= to the standard EIA/TIA-232 DB-25 connector (the DCE interface) on the NEC - NEXTSTAR 1E model C4969 MD/SAC unit. Cisco Systems does not provide this additional cable; however, the cable's signals and pin assignments are listed in Table 1-4. |
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Note You can use the Cisco Systems-provided EIA/TIA-232 adapter cable CAB-232FC= to connect a PA-4T+ interface that is configured for DCE mode directly to an NEC - NEXTSTAR 1E model C4969 MD/SAC unit interface that is configured for DTE mode. |
The router end of all EIA/TIA-449 adapter cables is a high-density, 60-pin plug. The network end of the adapter cable provides a standard 37-pin D-shell connector, which is commonly used for EIA/TIA-449 connections. Figure 1-6 shows the connectors at the network end of the adapter cable. EIA/TIA-449 cables are available as either DTE (DB-37 plug) or DCE (DB-37 receptacle).
The router end of all V.35 adapter cables is a high-density, 60-pin plug. The network end of the adapter cable provides a standard 34-pin Winchester-type connector commonly used for V.35 connections. Figure 1-7 shows the connectors at the network end of the V.35 adapter cable. V.35 cables are available with a standard V.35 plug for DTE mode (CAB-V35MT=) or a V.35 receptacle for DCE mode (CAB-V35FC=).
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Note Also available, but not shown in Figure 1-7, are CAB-V35MC=, a V.35 cable with a plug on the network end for DCE mode, and CAB-V35FT=, a V.35 cable with a receptacle on the network end for DTE mode. These cables are used for connecting V.35-equipped systems back to back. |
The router end of all X.21 adapter cables is a high-density, 60-pin plug. The network end of the adapter cable is a standard DB-15 connector. Figure 1-8 shows the connectors at the network end of the X.21 adapter cable. X.21 cables are available as either DTE (DB-15 plug) or DCE (DB-15 receptacle).
The EIA-530 adapter cable is available in DTE mode only. The router end of the EIA-530 adapter cable is a high-density, 60-pin plug. The network end of the adapter cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections. Figure 1-9 shows the DB-25 connector at the network end of the adapter cable.
All PA-4T+ ports use a a 60-pin receptacle that supports all available interface types. A special serial adapter cable determines the electrical interface type and mode of the interface. The router end of all of the adapter cables has a 60-pin plug; the connectors at the network end are the standard connectors used for the respective interfaces. All interface types except EIA-530 are available in DTE or DCE format: DTE with a plug at the network end and DCE with a receptacle at the network end. V.35 is available in either mode with either gender at the network end. EIA-530 is available in DTE only. The tables that follow list the signal pinouts for both the DTE and DCE mode serial port adapter cables for each of the following PA-4T+ interface types:
| DTE Cable (CAB-232MT=) | DCE Cable (CAB-232FC=) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Router End, HD1 60-Position Plug | Network End, DB-25 Plug | Router End, HD 60-Position Plug | Network End, DB-25 Receptacle | ||||||||
| Signal | Pin | Pin | Signal | Signal | Pin | Pin | Signal | ||||
Shield ground | 46 |
| 1 | Shield ground |
|
| Shield ground | 46 |
| 1 | Shield ground |
TxD/RxD | 41 | ---> | 2 | TxD |
|
| RxD/TxD | 36 | <--- | 2 | TxD |
RxD/TxD | 36 | <--- | 3 | RxD |
|
| TxD/RxD | 41 | ---> | 3 | RxD |
RTS/CTS | 42 | ---> | 4 | RTS |
|
| CTS/RTS | 35 | <--- | 4 | RTS |
CTS/RTS | 35 | <--- | 5 | CTS |
|
| RTS/CTS | 42 | ---> | 5 | CTS |
DSR/DTR | 34 | <--- | 6 | DSR |
|
| DTR/DSR | 43 | ---> | 6 | DSR |
Circuit ground | 45 |
| 7 | Circuit ground |
|
| Circuit ground | 45 |
| 7 | Circuit ground |
DCD/LL | 33 | <--- | 8 | DCD |
|
| LL/DCD | 44 | ---> | 8 | DCD |
TxC/NIL | 37 | <--- | 15 | TxC |
|
| TxCE/TxC | 39 | ---> | 15 | TxC |
RxC/TxCE | 38 | <--- | 17 | RxC |
|
| NIL/RxC | 40 | ---> | 17 | RxC |
LL/DCD | 44 | ---> | 18 | LTST |
|
| DCD/LL | 33 | <--- | 18 | LTST |
DTR/DSR | 43 | ---> | 20 | DTR |
|
| DSR/DTR | 34 | <--- | 20 | DTR |
TxCE/TxC | 39 | ---> | 24 | TxCE |
|
| RxC/TxCE | 38 | <--- | 24 | TxCE |
Mode 0 | 50 |
|
| |
|
| Mode 0 | 50 |
|
| |
| 1HD = high density. |
| Router (DTE) End, DB-25 Receptacle | Network (DCE) End, DB-25 Plug | |||
|---|---|---|---|---|
| Signal | Pin | Pin | Signal | |
Shield ground | 1 |
| 1 | Shield ground |
TxD | 2 | ---> | 2 | TxD |
RxD | 3 | <--- | 3 | RxD |
RTS | 4 | ---> | 4 | RTS |
CTS | 5 | <--- | 5 | CTS |
DSR | 6 | <--- | 6 | DSR |
Circuit ground | 7 |
| 7 | Circuit ground |
DCD | 8 | <--- | 8 | DCD |
TxC, RxC | 15, 17 | <--- | 15 | TxC |
- | - | <--- | 17 | RxC |
LTST | 18 | ---> | 18 | LTST |
DTR | 20 | ---> | 20 | DTR |
TxCE | 24 | ---> | 24 | TxCE |
Shorting group |
|
|
| Shorting group |
| DTE Cable (CAB-449MT=) | DCE Cable (CAB-449C=) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Router End, HD1 60-Position Plug | Network End, DB-37 Plug | Router End, HD 60-Position Plug | Network End, DB-37 Receptacle | ||||||||
| Signal | Pin | Pin | Signal | Signal | Pin | Pin | Signal | ||||
Shield ground | 46 | 1 | Shield ground |
|
| Shield ground | 46 |
| 1 | Shield ground | |
TxD/RxD+ | 11 | ---> | 4 | SD+ |
|
| RxD/TxD+ | 28 | <--- | 4 | SD+ |
TxD/RxD- | 12 | ---> | 22 | SD- |
|
| RxD/TxD- | 27 | <--- | 22 | SD- |
TxC/RxC+ | 24 | <--- | 5 | ST+ |
|
| TxCE/TxC+ | 13 | ---> | 5 | ST+ |
TxC/RxC- | 23 | <--- | 23 | ST- |
|
| TxCE/TxC- | 14 | ---> | 23 | ST- |
RxD/TxD+ | 28 | <--- | 6 | RD+ |
|
| TxD/RxD+ | 11 | ---> | 6 | RD+ |
RxD/TxD- | 27 | <--- | 24 | RD- |
|
| TxD/RxD- | 12 | ---> | 24 | RD- |
RTS/CTS+ | 9 | ---> | 7 | RS+ |
|
| CTS/RTS+ | 1 | <--- | 7 | RS+ |
RTS/CTS- | 10 | ---> | 25 | RS- |
|
| CTS/RTS- | 2 | <--- | 25 | RS- |
RxC/TxCE+ | 26 | <--- | 8 | RT+ |
|
| TxC/RxC+ | 24 | ---> | 8 | RT+ |
RxC/TxCE- | 25 | <--- | 26 | RT- |
|
| TxC/RxC- | 23 | ---> | 26 | RT- |
CTS/RTS+ | 1 | <--- | 9 | CS+ |
|
| RTS/CTS+ | 9 | ---> | 9 | CS+ |
CTS/RTS- | 2 | <--- | 27 | CS- |
|
| RTS/CTS- | 10 | ---> | 27 | CS- |
LL/DCD | 44 | ---> | 10 | LL |
|
| NIL/LL | 29 | ---> | 10 | LL |
Circuit ground | 45 |
| 37 | SC |
|
| Circuit ground | 30 |
| 37 | SC |
DSR/DTR+ | 3 | <--- | 11 | ON+ |
|
| DTR/DSR+ | 7 | ---> | 11 | ON+ |
DSR/DTR- | 4 | <--- | 29 | ON- |
|
| DTR/DSR- | 8 | ---> | 29 | ON- |
DTR/DSR+ | 7 | ---> | 12 | TR+ |
|
| DSR/DTR+ | 3 | <--- | 12 | TR+ |
DTR/DSR- | 8 | ---> | 30 | TR- |
|
| DSR/DTR- | 4 | <--- | 30 | TR- |
DCD/DCD+ | 5 | <--- | 13 | RR+ |
|
| DCD/DCD+ | 5 | ---> | 13 | RR+ |
DCD/DCD- | 6 | <--- | 31 | RR- |
|
| DCD/DCD- | 6 | ---> | 31 | RR- |
TxCE/TxC+ | 13 | ---> | 17 | TT+ |
|
| RxC/TxCE+ | 26 | <--- | 17 | TT+ |
TxCE/TxC- | 14 | ---> | 35 | TT- |
|
| RxC/TxCE- | 25 | <--- | 35 | TT- |
Circuit ground | 15 |
| 19 | SG |
|
| Circuit ground | 15 |
| 19 | SG |
Circuit ground | 16 |
| 20 | RC |
|
| Circuit ground | 16 |
| 20 | RC |
Mode 1 | 49 |
|
| Shorting group |
|
| Mode 1 | 49 |
|
| Shorting group |
Ground | 51 |
|
| Shorting group |
|
|
|
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|
|
|
| 1HD = high density. |
| Router End, HD1 60-Position Plug | Network End, DB-25 Plug | |||
|---|---|---|---|---|
| Signal | Pin |
| Pin | Signal |
Shield ground | 46 |
| 1 | Shield ground |
TxD/RxD+ | 11 | ---> | 2 | TxD+ |
TxD/RxD- | 12 | ---> | 14 | TxD- |
RxD/TxD+ | 28 | <--- | 3 | RxD+ |
RxD/TxD- | 27 | <--- | 16 | RxC- |
RTS/CTS+ | 9 | ---> | 4 | RTS+ |
RTS/CTS- | 10 | ---> | 19 | RTS- |
CTS/RTS+ | 1 | <--- | 5 | CTS+ |
CTS/RTS- | 2 | <--- | 13 | CTS- |
DSR/DTR+ | 3 | <--- | 6 | DSR+ |
DSR/DTR- | 4 | <--- | 22 | DSR- |
DCD/DCD+ | 5 | <--- | 8 | DCD+ |
DCD/DCD- | 6 | <--- | 10 | DCD- |
TxC/RxC+ | 24 | <--- | 15 | TxC+ |
TxC/RxC- | 23 | <--- | 12 | TxC- |
RxC/TxCE+ | 26 | <--- | 17 | RxC+ |
RxC/TxCE- | 25 | <--- | 9 | RxC- |
LL/DCD | 44 | ---> | 18 | LL |
Circuit ground | 45 |
| 7 | Circuit ground |
DTR/DSR+ | 7 | ---> | 20 | DTR+ |
DTR/DSR- | 8 | ---> | 23 | DTR- |
TxCE/TxC+ | 13 | ---> | 24 | TxCE+ |
TxCE/TxC- | 14 | ---> | 11 | TxCE- |
Mode_1 | 49 |
|
| |
Ground | 51 |
|
| Shorting group |
| 1HD = high density. |
| DTE Cable (CAB-V35FT= or CAB-V35MT=) | DCE Cable (CAB-V35FC= or CAB-V35MC=) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Router End, HD1 60-Position Plug | Network End, 34-Position Plug | Router End, HD 60-Position Plug | Network End, 34-Position Receptacle | |||||||
| Signal | Pin |
| Pin | Signal | Signal | Pin |
| Pin | Signal | |
Shield ground | 46 |
| A | Frame ground |
| Shield ground | 46 |
| A | Frame ground |
Circuit ground | 45 |
| B | Circuit ground |
| Circuit ground | 45 |
| B | Circuit ground |
RTS/CTS | 42 | ---> | C | RTS |
| CTS/RTS | 35 | <--- | C | RTS |
CTS/RTS | 35 | <--- | D | CTS |
| RTS/CTS | 42 | ---> | D | CTS |
DSR/DTR | 34 | <--- | E | DSR |
| DTR/DSR | 43 | ---> | E | DSR |
DCD/LL | 33 | <--- | F | RLSD |
| LL/DCD | 44 | ---> | F | RLSD |
DTR/DSR | 43 | ---> | H | DTR |
| DSR/DTR | 34 | <--- | H | DTR |
LL/DCD | 44 | ---> | K | LT |
| DCD/LL | 33 | <--- | K | LT |
TxD/RxD+ | 18 | ---> | P | SD+ |
| RxD/TxD+ | 28 | <--- | P | SD+ |
TxD/RxD- | 17 | ---> | S | SD- |
| RxD/TxD- | 27 | <--- | S | SD- |
RxD/TxD+ | 28 | <--- | R | RD+ |
| TxD/RxD+ | 18 | ---> | R | RD+ |
RxD/TxD- | 27 | <--- | T | RD- |
| TxD/RxD- | 17 | ---> | T | RD- |
TxCE/TxC+ | 20 | ---> | U | SCTE+ |
| RxC/TxCE+ | 26 | <--- | U | SCTE+ |
TxCE/TxC- | 19 | ---> | W | SCTE- |
| RxC/TxCE- | 25 | <--- | W | SCTE- |
RxC/TxCE+ | 26 | <--- | V | SCR+ |
| NIL/RxC+ | 22 | ---> | V | SCR+ |
RxC/TxCE- | 25 | <--- | X | SCR- |
| NIL/RxC- | 21 | ---> | x | SCR- |
TxC/RxC+ | 24 | <--- | Y | SCT+ |
| TxCE/TxC+ | 20 | ---> | Y | SCT+ |
TxC/RxC- | 23 | <--- | AA | SCT- |
| TxCE/TxC- | 19 | ---> | AA | SCT- |
Mode 1 | 49 |
|
| Shorting group |
| Mode 1 | 49 |
|
| Shorting group |
Mode 0 | 50 |
|
| Shorting group |
| Mode 0 | 50 |
|
| Shorting group |
TxC/NIL | 53 |
|
| Shorting group |
| TxC/NIL | 53 |
|
| Shorting group |
| 1HD = high density. |
| DTE Cable (CAB-X21MT=) | DCE Cable (CAB-X21FC=) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Router End, HD1 60-Position Plug | Network End, DB-15 Plug | Router End, HD 60-Position Plug | Network End, DB-15 Receptacle | |||||||
| Signal | Pin | Pin | Signal | Signal | Pin | Pin | Signal | |||
Shield ground | 46 |
| 1 | Shield ground |
| Shield ground | 46 |
| 1 | Shield ground |
TxD/RxD+ | 11 | ---> | 2 | Transmit+ |
| RxD/TxD+ | 11 | ---> | 2 | Transmit+ |
TxD/RxD- | 12 | ---> | 9 | Transmit- |
| RxD/TxD- | 12 | ---> | 9 | Transmit- |
RTS/CTS+ | 9 | ---> | 3 | Control+ |
| CTS/RTS+ | 9 | ---> | 3 | Control+ |
RTS/CTS - | 10 | ---> | 10 | Control- |
| CTS/RTS - | 10 | ---> | 10 | Control- |
RxD/TxD+ | 28 | <--- | 4 | Receive+ |
| TxD/RxD+ | 28 | <--- | 4 | Receive+ |
RxD/TxD- | 27 | <--- | 11 | Receive- |
| TxD/RxD- | 27 | <--- | 11 | Receive- |
CTS/RTS+ | 1 | <--- | 5 | Indication+ |
| RTS/CTS+ | 1 | <--- | 5 | Indication+ |
CTS/RTS - | 2 | <--- | 12 | Indication- |
| RTS/CTS- | 2 | <--- | 12 | Indication- |
RxC/TxCE+ | 26 | <--- | 6 | Timing+ |
| TxC/RxC+ | 26 | <--- | 6 | Timing+ |
RxC/TxCE- | 25 | <--- | 13 | Timing- |
| TxC/RxC - | 25 | <--- | 13 | Timing- |
Circuit ground | 15 |
| 8 | Circuit ground |
| Circuit ground | 15 |
| 8 | Circuit ground |
Ground | 48 |
|
| Shorting group |
| Ground | 48 |
|
| Shorting |
Ground | 51 |
|
| Shorting group |
| Ground | 51 |
|
|
|
| 1HD = high density. |
This section discusses port adapter slot locations on the supported platforms. The illustrations that follow summarize slot location conventions on each platform.
The Catalyst RSM/VIP2 can be installed in any slot except the top slots, which contain the supervisor engines. The Catalyst RSM/VIP2 in a Catalyst 5000 family switch does not use interface processor slot numbering; therefore, slots are not numbered in Figure 1-10. The PA-4T+ can be installed into either port adapter slot 0 or slot 1 on a Catalyst RSM/VIP2. Figure 1-10 shows a Catalyst RSM/VIP2 with two port adapters installed.
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Note The Catalyst 5500 switch has 13 slots. Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it would go in slot 2; otherwise, slot 2 can be used for other modules. Slot 13 is a dedicated slot, reserved for the ATM Switch Processor (ASP) module. Refer to the Catalyst 5000 Series Route Switch Module Installation and Configuration Note for any additional slot restrictions for the Catalyst RSM/VIP2. |
The Catalyst 6000 family FlexWAN module can be installed in any slot except slot 1, which is reserved for the supervisor engine. The PA-4T+ can be installed into either port adapter bay 0 or bay 1 on a FlexWAN module. Figure 1-11 shows a FlexWAN module with two blank port adapters installed.
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Note Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it would go in slot 2; otherwise, slot 2 can be used for other modules. |
The PA-4T+ can be installed in port adapter slot 3 in Cisco 7120 series routers, and in port adapter slot 4 in Cisco 7140 series routers. Figure 1-12 shows a Cisco 7120 with a port adapter installed in slot 3. Figure 1-13 shows a Cisco 7140 with a port adapter installed in slot 4.
Figure 1-14 shows a Cisco 7206 with port adapters installed. In the Cisco 7206 (including the Cisco 7206 and Cisco 7206VXR as router shelves in a Cisco AS5800 Universal Access Server), port adapter slot 1 is in the lower left position, and port adapter slot 6 is in the upper right position. (The Cisco 7202 and Cisco 7204 are not shown; however, the PA-4T+ can be installed in any available port adapter slot.)
Figure 1-15 shows the slot numbering of port adapters in a Cisco uBR7246 and Cisco uBR7246VXR router. The port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBR7246VXR router and slot 1 for the Cisco uBR7223. (Slot 0 is always reserved for the Fast Ethernet port on the I/O controller---if present.)
Figure 1-16 shows a partial view of a VIP motherboard with installed port adapters. With the motherboard oriented as shown in Figure 1-16, the left port adapter is in port adapter slot 0, and the right port adapter is in port adapter slot 1. The slot numbering is the same for the Catalyst RSM/VIP2. The slots are always numbered 0 and 1.
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Note In the Cisco 7000, Cisco 7507, and Cisco 7513 chassis, the VIP motherboard is installed vertically. In the Cisco 7010 and Cisco 7505 chassis, the VIP motherboard is installed horizontally. |
Interface processor slots are numbered as shown in Figure 1-17.
This section describes how to identify interface addresses for the PA-4T+ in supported platforms. Interface addresses specify the actual physical location of each interface on a router or switch.
Interfaces on the PA-4T+ installed in a router maintain the same address regardless of whether other port adapters are installed or removed. However, when you move a port adapter to a different slot, the first number in the interface address changes to reflect the new port adapter slot number.
Interfaces on a PA-4T+ installed in a VIP2 maintain the same address regardless of whether other interface processors are installed or removed. However, when you move a VIP2 to a different slot, the interface processor slot number changes to reflect the new interface processor slot.
Table 1-9 explains how to identify interface addresses.
| Platform | Interface Address Format | Numbers | Syntax |
|---|---|---|---|
Catalyst RSM/VIP2 in Catalyst 5000 family switches | Port-adapter-slot-number/interface-port-number | Port adapter slot---always 0 or 1 Interface port---0 through 3 | 0/1 |
Catalyst 6000 family FlexWAN module in Catalyst 6000 family switches | Module-slot-number/port-adapter-bay-number/ | Module slot number---21 through 6 or 9 (depending on the number of slots in the switch) Port adapter bay---always 0 or 1 Interface port---0 through 3 | 3/0/0 |
Cisco 7120 series routers | Port-adapter-slot-number/interface-port-number | Port adapter slot---always 3 Interface port---0 through 3 | 3/1 |
Cisco 7140 series routers | Port-adapter-slot-number/interface-port-number | Port adapter slot---always 4 Interface port---0 through 3 | 4/0 |
Cisco 7200 series routers | Port-adapter-slot-number/interface-port-number | Port adapter slot---0 through 6 (depends on the number of slots in the router)2 Interface port---0 through 3 | 1/0 |
Cisco uBR7223 router | Port-adapter-slot-number/interface-port-number | Port adapter slot---always 12 Interface port---0 through 3 | 1/0 |
Cisco uBR7246 and Cisco uBR7246VXR routers | Port-adapter-slot-number/interface-port-number | Port adapter slot---always 1 or 22 Interface port---0 through 3 | 1/2 |
VIP2 in Cisco 7000 series or Cisco 7500 series routers | Interface-processor-slot-number/port-adapter- | Interface processor slot---0 through 12 (depends on the number of slots in the router) Port adapter slot---always 0 or 1 Interface port---0 through 3 | 3/1/0 |
| 1Slot 1 is reserved for the supervisor engine. If a redundant supervisor engine is used, it must go in slot 2; otherwise, slot 2 can be used for other modules. 2Port adapter slot 0 is reserved for the Fast Ethernet port on the I/O controller (if present). |
This section describes how to identify the interface addresses used for the PA-4T+ on the Catalyst RSM/VIP2 in the Catalyst 5000 family switches. The interface address is composed of a two-part number in the format port-adapter-slot number/interface-port number.
See Table 1-9 for the interface address format.
This section describes how to identify the interface addresses used for the PA-4T+ on the Catalyst FlexWAN module in the Catalyst 6000 family switches.The interface address is composed of a three-part number in the format module number/port adapter bay number/interface port number.
See Table 1-9 for the interface address format.
If the FlexWAN module is inserted in module slot 3, then the interface addresses of the PA-4E are 3/0/0 through 3/0/3 (module slot 3, port adapter bay 0, and interfaces 0 through 3). If the port adapter was in port adapter bay 1 on the FlexWAN module, these same interface addresses would be numbered 3/1/0 through 3/1/3.
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Note If you remove the FlexWAN module with the PA-4E from module slot 3 and install it in module slot 6, the interface addresses become 6/0/0 through 6/0/3. |
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Note The FlexWAN module physical port address uses a zero- (0-) based port address, which differs from the conventional Catalyst 6000 family one- (1-) based port address. |
This section describes how to identify the interface addresses used for the PA-4T+ in Cisco 7100 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-
number/interface-port-number. See Table 1-9 for the interface address format.
This section describes how to identify the interface addresses used for the PA-4T+ in Cisco 7200 series routers or Cisco uBR7200 series routers. The interface address is composed of a two-part number in the format port-adapter-slot-number/interface-port-number. See Table 1-9 for the interface address format.
In Cisco 7200 series routers, port adapter slots are numbered from the lower left to the upper right, beginning with port adapter slot 1 and continuing through port adapter slot 2 for the Cisco 7202, slot 4 for the Cisco 7204 and Cisco 7204VXR, and slot 6 for the Cisco 7206 and Cisco 7206VXR. (Port adapter slot 0 is reserved for the optional Fast Ethernet port on the I/O controller---if present.)
The interface addresses of the interfaces on the PA-4T+ in port adapter slot 1 are 1/0 through 1/3 (port adapter slot 1 and interfaces 0 through 3). If the PA-4T+ was in port adapter slot 4, these same interfaces would be numbered 4/0 through 4/3 (port adapter slot 4 and interfaces 0 through 3).
In Cisco uBR7200 series routers, port adapter slots are numbered slot 1 and slot 2 for the Cisco uBR7246 and Cisco uBR7246VXR and slot 1 for the Cisco uBR7223. (Slot 0 is always reserved for the Fast Ethernet port on the I/O controller---if present.) The individual interfaces always begin with 0. The number of additional interfaces depends on the number of interface ports on a port adapter.
The interface addresses of the interfaces on a PA-4T+ in port adapter slot 2 are 2/0 and 2/1 (port adapter slot 2 and interfaces 0 and 1). If the PA-4T+ was in port adapter slot 1, these same interfaces would be numbered 1/0 and 1/1 (port adapter slot 1 and interfaces 0 and 1).
This section describes how to identify the interface addresses used for the PA-4T+ on a VIP2 in Cisco 7000 series and Cisco 7500 series routers.
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Note Although the processor slots in the 7-slot Cisco 7000 and Cisco 7507 and the 13-slot Cisco 7513 and Cisco 7576 are vertically oriented and those in the 5-slot Cisco 7010 and Cisco 7505 are horizontally oriented, all Cisco 7000 series and Cisco 7500 series routers use the same method for slot and port numbering. |
See Table 1-9 for the interface address format. The interface address is composed of a three-part number in the format interface-processor-slot number/port-adapter-slot-number/interface-port-number.
If the VIP2 is inserted in interface processor slot 3, then the interface addresses of the PA-4T+ are 3/1/0 through 3/1/3 (interface processor slot 3, port adapter slot 1, and interfaces 0 through 3). If the port adapter was in port adapter slot 0 on the VIP2, these same interface addresses would be numbered 3/0/0 through 3/0/3.
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Note If you remove the VIP2 with the PA-4T+ (shown in Figure 1-17) from interface processor slot 3 and install it in interface processor slot 2, the interface addresses become 2/1/0 through 2/1/3. |
Posted: Fri May 26 11:48:26 PDT 2000
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