Grp Console Port Signals; Grp Auxiliary Port Signals; Table 3-1 Grp Console Port Signals; Table 3-2 Auxiliary Port Signals - Cisco GSR12/60 - 12012 Router -AnyLAN, SONET/SDH Installation And Configuration Manual

GRP Console Port Signals

Both Data Set ready (DSR) and Data Carrier Detect (DCD) signals are active when the
system is running. The console port does not support modem control or hardware flow
control. The console port requires a straight-through EIA/TIA-232 cable. Table 3-1 lists the
signals used on this port
Table 3-1
Pin
1
2
3
6
7
8
20

GRP Auxiliary Port Signals

The auxiliary port on the GRP 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 Cisco 12012. The port is located
above the console port on the GRP faceplate. The auxiliary port supports hardware flow
control and modem control. An example of a modem connection is shown in Figure 3-14.
Table 3-2 lists the signals used on the auxiliary port.
Table 3-2
Pin
1
2
3
4
GRP Console Port Signals
Signal Direction
GND –
TxD Output
RxD Input
DSR Input
GND –
DCD Input
DTR Output
Auxiliary Port Signals
Signal Direction
Signal Ground –
TxD Output
RxD Input
RTS Output
Connecting Route Processor Cables
Description
Ground
Transmit Data
Receive Data
Data Set Ready (always on)
Ground
Data Carrier Detect (always on)
Data Terminal Ready
Description
Signal Ground
Transmit Data
Receive Data
Request To Send (used for hardware flow control)
Installing a Cisco 12012 3-35