Cisco ASR 903 Hardware Installation Guide

Table 21: RJ48 IPPS/ToD Port Pinout
DescriptionDirectionSignal NamePin
V.11 Cable CorporationOutput or InputRESERVED1
Output or InputRESERVED2
1PPS RS422 signalOutput1PPS_N3
GND4
5
1PPS RS422 signalInput1PPS_P6
Time of Day R422 output
or input signal
Output or InputTOD_N7
Time of Day R422 output
or input signal
Output or InputTOD_P8
Alarm Port Pinout
The table below summarizes the external alarm input pinout.
Table 22: 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 commonCOMMON8
Cisco ASR 903 Aggregation Services Router Hardware Installation Guide
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Troubleshooting
Alarm Port Pinout

Cisco ASR 903 Specifications

General

Form Factor	Modular
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5% to 95% non-condensing
Redundancy	Yes, redundant power supplies and route processors
Operating System	Cisco IOS XE
Power Supply	AC or DC
Switching Capacity	240 Gbps
Operating Temperature	-40°C to 65°C (-40°F to 149°F)
MTBF	200, 000 hours
Supported Protocols	IPv4, IPv6, MPLS, L2VPN, L3VPN
Interfaces	Gigabit Ethernet, 10 Gigabit Ethernet, T1/E1