Appendix B Cable Specifications
BITS Port Pinouts
BITS Port Pinouts
Table
Table | BITS Pinouts for the Cisco ASR 901 router |
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Pin | Signal Name | Direction | Description |
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1 | RX ring | Input | Receive ring |
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2 | RX tip | Input | Receive tip (T1/E1) |
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3 | Not connected |
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4 | TX ring | Output | Transmit ring |
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5 | TX tip | Output/input | Transmit tip (T1/E1) |
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6 |
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| Not connected |
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7 |
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| Not connected |
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8 |
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| Not connected |
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Time of Day Pinouts
Table
Table | Time of Day RJ45 Interface Pinout |
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Pin | Signal Name | Direction | Description |
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1 |
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| Not connected |
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2 |
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| Not connected |
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3 |
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| Not connected |
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4 | Ground |
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5 | Ground |
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6 |
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| Not connected |
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7 | TOD_N | Output/Input | Time of Day RS422 differential input |
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| or output |
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8 | TOD_P | Output/Input | Time of Day RS422 differential input |
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| or output |
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GPS Port Pinouts
The Cisco ASR 901 router has a 10Mhz and a 1PPS GPS port that allow you to configure input or output clocking with a GPS device. Table
Note For pinouts related to ToD and 1PPS using the BITS interface, see Console Port Signals and Pinouts.
Cisco ASR 901 Series Aggregation Services Router Hardware Installation Guide
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