Cisco ASR 907 User Manual

Use a 4-port EIA-232 DCE, 10 feet, Female DB-25, and CAB-HD4-232FC. Pinout of the DB25 connector
to be connected to the RS232-to-RS422 converter.
Table 17: RS422 Pinout
DescriptionSignal NamePin
RTS pin for RS232TXD+4
DTR pin for RS232TXD-20
CTS pin for RS232RXD+5
DSR pin for RS232RXD-6
Alarm Port Pinout
The table below summarizes the external alarm input pinout.
Table 18: External Alarm Input Pinout
DescriptionSignal NamePin
Alarm input 0ALARM0_IN1
Alarm input 1ALARM1_IN2
No connect3
Alarm input 2ALARM2_IN4
Alarm input 3ALARM3_IN5
No connect6
No connect7
Alarm
common
COMMON8
Console/Aux RJ45 RS232 Serial Port Pinout
The table below summarizes the console/aux RJ45 RS232 serial port pinout.
Table 19: Console/Aux RJ45 RS232 serial port
DescriptionDirectionSignal
Name
Pin
—Not
Used
RTS1
Cisco ASR 907 Router Hardware Installation Guide
159
Troubleshooting
Alarm Port Pinout

Cisco ASR 907 Specifications

General

Brand	Cisco
Model	ASR 907
Category	Network Router
Language	English