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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