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B-7
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
OL-23778-01
Appendix B Cable Specifications
Alarm Port Pinouts
The 1PPS interface type is Series 1.0 / 2.3, 50 ohms.
For instructions on how to configure the 10 Mhz and 1PPSs ports, see the Cisco ASR 901 router Mobile
Wireless Software Configuration Guide.
Alarm Port Pinouts
Table B-9 list the pinouts for the alarm port (RJ45) on the Cisco ASR 901 router.
Management Ethernet Port Pinouts
Table B-10 list the pinouts for the management ethernet port (RJ45) on the Cisco ASR 901 router.
Table B-8 GPS Port Pinouts for the Cisco ASR 901 router
10 Mhz 1PPS
Waveform Input—Sine wave
Output—Square wave
Input—Pulse shape
Output—Pulse shape
Amplitude Input— > 1.7 volt p-p
(+8 to +10 dBm)
Output— > 2.4 volts TTL
compatible
Input— > 2.4 volts TTL
compatible
Output— > 2.4 volts TTL
compatible
Impedance 50 ohms 50 ohms
Pulse Width 50% duty cycle 26 microseconds
Rise Time Input—AC coupled
Output—5 nanoseconds
40 nanoseconds
Table B-9 Alarm port Pinout
Pin Signal Name Description
1 Alarm input 1
2 Alarm input 2
3 Not connected
4 Alarm input 3
5 Alarm input 4
6 Not connected
7 Not connected
8 Not connected