Replacing a GRP
Connecting to the Auxiliary Port
The auxiliary port on the GRP is an
Table 3 | Auxiliary Port Pinout |
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Auxiliary Port Pin | Signal | Direction | Description | |
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2 |
| TxD | Transmit Data (to DCE) | |
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3 |
| RxD | <— | Receive Data (from DCE) |
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4 |
| RTS | Request To Send (used for hardware flow control) | |
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5 |
| CTS | <— | Clear To Send (used for hardware flow control) |
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6 |
| DSR | <— | Data Set Ready |
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7 |
| GND | – | Signal Ground |
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8 |
| CD | <— | Carrier Detect (used for modem control) |
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20 |
| DTR | Data Terminal Ready (used for modem control only) | |
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Connecting to the Ethernet Port
Information you need to make connections to the Ethernet port on your GRP is presented in the following sections:
•Ethernet Interface Receptacles, Cables, and Pinouts
•Ethernet Interface Cable Connection Procedure
Ethernet Interface Receptacles, Cables, and Pinouts
The two Ethernet interface receptacles on the GRP are a single media independent interface (MII),
Each connection supports IEEE 802.3 and IEEE 802.3u interfaces compliant with the
RJ-45 Connections
Figure 6 shows the GRP RJ-45 receptacle and cable connectors. The RJ-45 connection does not require an external transceiver. The RJ-45 connection requires Category 5 unshielded twisted-pair (UTP) cables, which are not available from Cisco Systems, but are available from commercial cable vendors. Table 4 lists the pinout for the RJ-45 receptacle.
Connecting to the Auxiliary Port
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