Cisco ASR-920-24SZ-IM Installation Guide

5-3
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation Guide
Chapter 5 Troubleshooting
Pinouts
Alarm Port Pinouts
Table 5-4 summarizes the external alarm input pinouts.
Management Ethernet Port Pinouts
Table 5-5 summarizes the Management Ethernet port pinouts.
Table 5-3 RJ-45 1PPS/ToD Port Pinouts
Pin Signal Name Direction Description
1 RESERVED Output Do Not Connect
2 RESERVED Input Do Not Connect
3 1PPS_N Output or Input 1PPS RS422
signal
4GND — —
5GND — —
6 1PPS_P Output or Input 1PPS RS422
signal
7 TOD_N Output or Input Time-of-Day
character
8 TOD_P Output or Input Time-of-Day
character
Table 5-4 External Alarm Input Pinouts
Pin Signal Name Description
1 ALARM0_IN Alarm input 0
2 ALARM1_IN Alarm input 1
3 — No connect
4 ALARM2_IN Alarm input 2
5 ALARM3_IN Alarm input 3
6 — No connect
7 — No connect
8 COMMON Alarm common
Table 5-5 Fan Alarm Port Pinout
Pin Signal Name
1TRP0+
2TRP0-
3TRP1+

Cisco ASR-920-24SZ-IM Specifications

General

Brand	Cisco
Model	ASR-920-24SZ-IM
Category	Network Router
Language	English