Time-Of-Day Port Pinouts - Cisco ASR 902U Hardware Installation Manual
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Also See for ASR 902U:
- Hardware installation manual (39 pages) ,
- Troubleshooting manual (18 pages)
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Troubleshooting
Time-of-Day Port Pinouts
To ensure proper signal integrity at the receiver, we recommend that you use a 50-ohm termination, as shown
in the figure below. The output swing at 50-ohm load is guaranteed to be 2.9 V.
Figure 60: Terminating 1-PPS Signal
Label
1
2
The table below summarizes the ToD/1-PPS port pinouts for ASR900-RSP1-55.
Table 21: RJ45 1-PPS/ToD Port Pinouts
Pin
1
2
3
4
5
6
7
Signal Name
RESERVED
RESERVED
RESERVED
GND
GND
RESERVED
TOD_P
Cisco ASR 902 and ASR 902U Aggregation Services Router Hardware Installation Guide
Time-of-Day Port Pinouts
Component
1-PPS SMB connector
External 50 ohm resistor
Direction
Description
—
Do not connect
—
Do not connect
Output
Do not connect
—
—
—
Time of Day character
Input
Do not connect
Output or Input
Time of Day character
123
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