|
|
This appendix contains details on the MGX 8850 cabling.
A trunk cable connects each T3 port on the BNC-2T3 back card to a T3 port on the co-located BPX-8600-series node. Refer to Table B-1 and Table B-2 for details.
| Cable Parameter | Description |
|---|---|
Type: | 75-ohm coax cable (RG-59 B/U for short runs, AT&T 734A for longer runs). Two per T3 line (XMT and RCV). |
Max. Length: | 450 feet max. between the BPX 8600-series node and the MGX 8850 node. |
Connector: | Terminated in male BNC; Rx is received from trunk, Tx is transmitted to trunk. |
| Connector | Description |
|---|---|
Rx BNC | Receive T3 from trunk |
Tx BNC | Transmit T3 to trunk |
This section describes the cabling and connector pinouts for the Frame Relay cards.
Trunk cables connect the customer DSX-1 cross-connect point or T1 Channel Service Unit (CSU) to the node at the T1 back card. Refer to Table B-3 and Table B-4 for details.
| Cable Parameter | Description |
|---|---|
Cable Type: | Western Electric 22 AWG, ABAM individually shielded twisted pair |
Cable Connector: | Male DB-15 subminiature. |
Max. Cable Length: | 533 ft. (162 m) maximum between the MGX 8850 node and the first repeater or CSU. Selection of cable length equalizers. |
| Pin No. | Description |
|---|---|
1 | Transmit, Tip |
2 | Transmit Pair Shield |
3 | Receive, Tip |
4 | Receive Pair Shield |
9 | Transmit, Ring |
11 | Receive, Ring |
E1 trunk cables connect the customer DSX-1 cross-connect point or E1 Channel Service Unit (CSU) to the node at the FRSM E1 back card (BNC-8E1). Refer to Table B-5 and Table B-6.
| Cable Parameter | Description |
|---|---|
Cable Type: BNC-8E1 | 75-ohm coax cable for unbalanced connection. Two cables/pairs (1 transmit, 1 receive) per E1 line. |
Cable Connector: | Two female BNC for unbalanced connection; male DB15 for balanced connection. Refer to Tables A-2 and A-3 for pinouts. |
Max. Cable Length: | Approximately 100 meters maximum between the MGX 8850 node and the first repeater or CSU. Equalizer for cable length. |
| Connector | Description |
|---|---|
Rx BNC | Receive E1 from trunk |
Tx BNC | Transmit E1 to trunk |
E1 trunk cables connect the customer DSX-1 cross-connect point or E1 CSU to the node at the FRSM E1 back card (DB15-8E1). Refer to Table B-7 and Table B-8.
| Cable Parameter | Description |
|---|---|
Cable Type: DB15-8E1 | Western Electric 22 AWG, ABAM individually shielded twisted pair |
Cable Connector: | Male DB-15 subminiature. |
Max. Cable Length: | 533 ft. (162 m) maximum between the MGX 8850 node and the first repeater or CSU. Selection of cable length equalizers. |
| Pin No. | Description |
|---|---|
1 | Transmit, Tip |
2 | Transmit Pair Shield |
3 | Receive, Tip |
4 | Receive Pair Shield |
9 | Transmit, Ring |
11 | Receive, Ring |
The back card for the MGX-FRSM-HS1/B is the 12IN1-S4. Each port on the back card connects through the DTE version or DCE version of the Cisco 12IN1 cable. For the signals on the back card, see Table B-9. The table shows the signal acronym, signal name, and signal source. The signal source depends on the mode of the V.35 back card, which is set by the type of cable. For the part numbers of the standard and non-standard versions of the 12IN1 cables, see Table B-10.
| Signal | Name | Source |
|---|---|---|
RTS | Request to Send | DTE |
DTR | Data Terminal Ready | DTE |
CTS | Clear To Send | DCE |
DSR | Data Set Ready | DCE |
DCD | Data Carrier Detect | DCE |
GND | Ground | both |
B_LL | Local Loopback | DTE |
GND | Ground | both |
TxD+ | Transmit Data | DTE |
TxD- | Transmit Data | DTE |
RxD+ | Receive Data | DCE |
RxD- | Receive Data | DCE |
TXCE | Secondary Clear to Send | DTE |
TXCE | Secondary Clear to Send | DTE |
RxC+ | Receive Clock | DCE |
RxC- | Receive Clock | DCE |
TxC+ | Transmit Clock | DCE |
TxC- | Transmit Clock | DCE |
| Type of Cable | Far End Connector | Part Number |
|---|---|---|
DTE | male (standard) | 72-1428-01 |
DTE | female (atypical) | 72-1436-01 |
DCE | female (standard) | 72-1429-01 |
DCE | male (atypical) | 72-1437-01 |
V.35 DTE-DCE |
| 72-1441-01 |
Straight-through |
| 72-1478-01 |
Loopback plug |
| 72-1479-01 |
The High Speed Serial Interface (HSSI) port connects through a female SCSI-II connector This connector accords with ANSI/TIA/EIA-613. Refer to Table B-11 for the pinouts.
| Pin No. | Name | Signal Function | Polarity | Signal Source |
|---|---|---|---|---|
11 | SD | Send Data | + | DTE |
36 |
|
| - |
|
4 | RD | Receive Data | + | DCE |
29 |
|
| - |
|
6 | ST | Send Timing | + |
|
31 |
|
| - |
|
2 | RT | Receive Timing | + |
|
27 |
|
| _ |
|
6 | TT | Terminal Timing | + | DCE |
13 |
|
| - |
|
3 | CA | DCE Available | + | DCE |
28 |
|
| - |
|
8 | TA | DTE Available | + | DTE |
33 |
|
| - |
|
10 | LA | Loop Ckt A | + | DTE |
35 |
|
| - |
|
12 | LB | Loop Ckt B | + | DTE |
37 |
|
| - |
|
5 | LC | Loop Ckt C | + | DCE |
30 |
|
| - |
|
1,26,7,32,13,38,19,44,25,50 | SG | Signal Ground |
|
|
For T1 and E1 ports that connect through a RJ-48 connector, each connector has:
An illustration of the connector wiring appears in Figure B-1.
DC Power connections are made to the DC Power Entry Modules at the rear of the MGX 8850 node. (See Figure B-2.) Refer to Table B-12 and Table B-13 for acceptable cable and wire types. Cisco normally does not provide wiring for DC-powered systems. Refer to Table B-12 for details on DC wiring.
| Cable Parameter | Description |
|---|---|
Wiring: | Three conductor, 12 AWG recommended wire gauge, min. 60ºC insulation rating, copper conductors only. Solid or stranded wires. Wire insulation stripped back 0.25" (6 mm) at the MGX 8850 connector end. |
Connection: | EURO Block. |
Either Cisco Systems or the customer can provide the AC power cord. See Table B-13 for the power cords that Cisco can supply. In addition, you can special-order AC cables with other plugs or different lengths. If you want to construct the power cord, it must mate with an IEC320 16/20A male receptacle on the back of the AC power module.
| Cable Parameter | Description |
|---|---|
Cable: | Provided with 8 feet (2.3 m) of 3-conductor wire with plug. |
Plug: customer end | 20 A NEMA L620, 3-prong plug (domestic U.S.) |
This section describes the cables that can connect to the PXM-UI card.
The Maintenance (or Modem) port and the Control (or Console) port connect a node to an ASCII terminal, workstation, or modem for remote alarm reporting or system monitoring. Refer to Table B-14 for a description of the cabling and Table B-15 for the pinout of the associated RJ-48 connector.
| Cable Parameter | Description |
|---|---|
Interface: | EIA/TIA-232---both are DTE ports. |
Suggested Cable: | 24 AWG, 25-wire. A straight-through EIA/TIA-232 cable provides a terminal or printer connection. For an interface with modems on either port, a null modem cable may be necessary. |
Cable Connector: | RJ-48, subminiature, male. Table B-15 contains a list of the port pin assignments. |
Max. Cable Length: | 50 feet (15 m) |
| Pin No. | Name | Description |
|---|---|---|
1 | RTS out | Request to Send |
2 | DTR out | Data Terminal Ready |
3 | TxD | Transmit Data |
4 | GND | Chassis ground |
5 | GND | Chassis ground |
6 | RxD | Receive Data |
7 | DSR | Data Set Ready |
8 | CTS | Clear to Send |
Figure B-3 shows a modem cable that is used for connecting modems to the MGX 8850 control and maintenance ports.
The external clock input cable connects the external clock inputs through the T3E3-D, T3E3-B and SMF-155 EXT. TMG. connectors. The clock may be 1.544 Mbps for T3E3-D or 2.048 Mbps for T3E3-D. Refer to Table B-16 through Table B-19.
The DB15 clock port can accept a T1 or E1 BITS clock input.
| Cable Parameter | Description |
|---|---|
Cable Type: | Western Electric 22 AWG, ABAM individually shielded twisted pair (100 ohm balanced). One pair per T1 line (1 receive). |
Cable Connector: | Male DB-15 subminiature. Refer to Table B-17 for pinouts. |
Max. Cable Length: | 533 ft. (162 m) maximum between the MGX 8850 node and the first repeater or CSU. Selection of cable length equalizers is used. Wire build-out is required. |
| Pin No. | Description |
|---|---|
1 |
|
2 | Transmit Pair Shield |
3 | Receive, Tip |
4 | Receive Pair Shield |
9 |
|
11 | Receive, Ring |
| Cable Parameter | Description |
|---|---|
Cable Type | 75-ohm coax cable for unbalanced connection. One cable pair per E1 clock input. |
Cable Connector: | One female BNC for unbalanced connection; male DB15 for balanced connection. |
Max. Cable Length: | Approximately 100 meters maximum between the MGX 8850 node and the first repeater or CSU. Equalizer for cable length. |
| Connector | Description |
|---|---|
Rx BNC | Receive E1 from trunk |
The external alarm cable connects to the Alarm connector on the PXM-UI card. See Table B-20 for physical characteristics of the cable and Table B-21 for the pinouts.
| Cable Parameter | Description |
|---|---|
Interface: | Dry-contact relay closure. |
Wire: | 24 AWG, shielded, 6-pair. |
Connector: | DB-15, Subminiature, male. |
| Pin No. | Alarm | Description |
|---|---|---|
1 | Audible---Major | Normally open |
2 |
| Common |
9 |
| Normally closed |
4 | Visual---Major | Normally open |
5 |
| Common |
12 |
| Normally closed |
7 | unused | n.c. |
8 | unused | n.c. |
3 | Audible---Minor | Normally open |
11 |
| Common |
10 |
| Normally closed |
6 | Visual---Minor | Normally open |
14 |
| Common |
13 |
| Normally closed |
15 | unused | n.c. |
For a list of the standard cables that Cisco can supply for the MGX 8850 switch, see Table B-22. The suffix to the model number indicates the length of the cable. For example, 5610-50 indicates a 50-foot cable. Cables are available in standard lengths of 10 ft. (3 m), 25 ft. (7.6 m), 50 ft. (15 m), 75 ft. (22.8 m), and 100 ft. (30 m). Lengths of 100 ft. (30 m) to 600 ft. (183 m) are available through a special order.
Where applicable, Table B-22 includes the gender of the connector and the number of pins. For example, EIA/TIA-232/M25-M25 indicates a cable terminated with a male DB25 at both ends.
| Model Number | Description | Usage |
|---|---|---|
|
|
|
T3-E3-10 | 75 | T3 or E3 trunk interface |
5620 | EIA/TIA-232/M25-F25 | PXM-UI maintenance port to control terminal, WAN Manager, or external window device |
5621 | EIA/TIA-232/M25-M25 special | Control or maintenance port to modem |
5601 | Ground cable | DC power |
5670 | Molex-pigtail | DC power |
5671 | Spade lug-pigtail | DC power |
Special Y-cables provide line redundancy where applicable. (The Service Resource Module can also provide redundancy where certain Y-cables do not apply.) Table B-23 lists the Y-cables used with various MGX 8850 cards.
| Applicable Card Name | Connector Hardware | Type/Standard Interface | Product Number |
|---|---|---|---|
PXM-UI | RJ45 | EIA/TIA-232 | CAB-5684-06 (6-inch Y) |
PXM-UI | RJ45 | EIA/TIA-232 | CAB-5684-18 |
PXM-UI | RJ45 | T1 BITS Clock | CAB-5686-06 (6-inch Y) |
PXM-UI | SMB | E1 BITS Clock | CAB-5681-06 (6-inch Y) |
PXM-UI | SMB | E1 BITS Clock | CAB-5681-18 (18-inch Y) |
PXM-UI | DB15 | Alarm Output | CAB-5607-10 (10-inch Y) |
PXM-4-155 | SC | SMF, MMF | CAB-SMF-Y-SC |
PXM-1-622 | SC | SMF | CAB-SMF-Y-SC |
PXM-2T3E3 | BNC | 75 ohm, coaxial | CAB-T3E3-Y |
MGX-BNC-3T3-M | BNC | 75 ohm, coaxial | CAB-T3E3-Y |
MGX-FRSM-2T3E3 | BNC | 75 ohm, coaxial | CAB-T3E3-Y |
MGX-CESM-T3E3 | BNC | 75 ohm, coaxial | CAB-T3E3-Y |
MGX-FRSM-HS2 | SCSI2 |
| CAB-SCSI2-Y |
SMSCFC010250-01M | SC to FC |
| 72-1246-01 |
Posted: Thu Oct 14 22:17:32 PDT 1999
Copyright 1989-1999©Cisco Systems Inc.
