Grp Console Port Signals; Grp Auxiliary Port Signals - Cisco 12406 Installation And Configuration Manual

Connecting to the Console and Auxiliary Ports

GRP Console Port Signals

GRP Auxiliary Port Signals

Note
Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
3-16
The console port on the GRP requires a straight-through EIA/TIA-232 cable.
Table 3-1 lists the signal-to-pin correspondence for the GRP console port.
Table 3-1 GRP Console Port Pin Signals
Pin Signal Input/Output
1 GND –
2 TxD Output
3 RxD Input
6 DSR Input
7 GND –
8 DCD Input
20 DTR Output
The GRP auxiliary port is a DB-25 plug DTE port for connecting a modem or
other DCE device (such as a CSU/DSU or other router) to the router. The auxiliary
port is located next to the console port on the GRP card. The auxiliary port
supports hardware flow control and modem control. An example of a modem
connection is shown in
correspondence for the auxiliary port.
To maintain Class B EMI compliance, shielded cables must be used on the console
and auxiliary ports of the GRP= and GRP-B=.
Description
Ground
Transmit Data
Receive Data
Data Set Ready (always on)
Ground
Data Carrier Detect (always on)
Data Terminal Ready
Figure 3-8. Table 3-2 lists the signal-to-pin
Chapter 3 Installing the Router
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