|
Fractional T1 Services Interface Supplied DB25Female DCE Pinouts |
|||
|---|---|---|---|
| Name | V.35 Name | Pin | Direction |
| Payload | |||
| TDa Transmit Data (a) | P | 2 |
 |
| TDb Transmit Data (b) | S | 14 |
|
| RDa Receive Data (a) | R | 3 |
 |
| RDb Receive Data (b) | T | 16 |
|
| Clocks | |||
| TCa Transmit Clock (a) | Y | 15 |
|
| TCb Transmit Clock (b) | AA | 12 |
|
| RCa Receive Clock (a) | V | 17 |
|
| RCb Receive Clock (b) | X | 9 |
|
| ECa External Clock (a) | U | 24 |
|
| ECb External Clock (b) | W | 11 |
|
| Grounds | |||
| FG Frame Ground | A | 1 | Common |
| SG Signal Ground | B | 7 | Common |
| [Optional] Unbalanced Control Pin Assignments | |||
| DCD Data Carrier Detect | F | 10 |
|
| CTS Clear To Send | D | 13 |
|
| DSR Data Set Ready | E | 22 |
|
| RTS Request To Send | C | 4 |
|
