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Use modular, RJ-45, straight-through UTP cables to connect the 10/100 Fast Ethernet ports to end systems. Use modular, RJ-45 cross-connect cables to connect to external switches and routers. Figure B-1 shows straight-through cables and Figure B-2 shows cross-connect cables.
-Through Cables
The 10/100 Fast Ethernet ports support RJ-45 connectors. Table B-1 lists the signals for RJ-45 cable connectors.
| Pin | Signal | Description |
|---|---|---|
1 | RxD+ | Receive data + |
2 | RxD- | Receive data - |
3 | TxD+ | No connection |
4 | NC | No connection |
5 | NC | No connection |
6 | TxD- | No connection |
7 | NC | Transmit data + |
8 | NC | Transmit data - |
Table B-2 describes cabling specifications for the GBICs that you install into the Gigabit Ethernet port modules. All GBICs use SC-type connectors, and the minimum cable distance for all GBICs listed is 6.5 feet (2 meters).
| GBIC | Wavelength (nm1) | Fiber Type | Core Size (micron) | Modal Bandwidth (MHz-km2) | Cable Distance |
|---|---|---|---|---|---|
850 | MMF5
| 62.5 62.5 50.0 50.0 | 160 200 400 500 | 722 ft (220 m) 902 ft (275 m) 1640 ft (500 m) 1804 ft (550 m) | |
LX/LH6 | 1300 | MMF7
SMF8 (LX/LH) | 62.5 50.0 50.0 9/10 | 500 400 500 — | 1804 ft (550 m) 1804 ft (550 m) 1804 ft (550 m) 32,810 ft (10 km) |
ZX9 | 1550 | SMF | Not conditional | — | 70 to 100 km |
| 1nm = nanometers 2MHz-km = modal bandwidth in MHz transmitted over a distance of 1 km 3SX = short wavelength 4MMF only 5MMF = multimode fiber 6LX/LH = long wavelength/long haul 7Patch cord required (see the "Patch Cord" section for details) 8SMF = single-mode fiber 9ZX = extended distance |
The console port is an RJ-45 receptacle. Data terminal ready (DTR) and data set ready (DSR) handshake signals are supported by this port. The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) signal. Table B-3 lists the console port pinouts.
| Pin | Signal | Direction | Description |
|---|---|---|---|
11 | RTS/CTS | Output | Request to send / Clear to send |
2 | DTR | Output | Data terminal ready |
3 | TxD | Output | Transmit data |
4 | SGND | — | Signal ground |
5 | SGND | — | Signal ground |
6 | RxD | Input | Receive data |
7 | DSR | Input | Data set ready |
81 | RTS/CTS | Input | Request to send / Clear to send |
| 1Pin 1 and pin 8 are connected. |
The auxiliary port is an RJ-45 receptacle that supports remote console interfaces using a modem. Table B-4 lists the auxiliary port pinouts.
Posted: Thu Sep 28 15:36:13 PDT 2000
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