Service manual

Connecting to the network and TS input
21
2
V.35 input pin
allocation
The connector V.35 IN is a 25-pin sub-D female connector for V.35 compliant
inputs. The following table shows the connector and the pin allocation table for this
connector.
Note: If you make your own cable, use a 80 to100 Ω twisted pair cable and assign the + and
- signals to the same pair (for example Rx Data + to Rx Data -).
Connector type Pin
numbe
r
Input Pin
numbe
r
Output
A1 Cable shield B1 Cable shield
A2 Not connected B2 Not connected
A3 Rx Data + B3 Rx Data +
A4 RTS (Request to
send)
B4 RTS (Request to
send)
A5 CTS (Clear to
send)
B5 CTS (Clear to
send)
A6 DSR (Data set
ready)
B6 DSR (Data set
ready)
A7 Ground B7 Ground
A8 CD Received line
signal detector.
B8 CD Received
line signal
detector.
A9 Rx Clock - B9 Rx Clock -
A10 Not connected B10 Not connected
A11 Not connected B11 Not connected
A12 Not connected B12 Not connected
A13 Not connected B13 Not connected
A14 Not connected B14 Not connected
A15 Not connected B15 Not connected
A16 RxData- B16 RxData-
A17 Rx Clock + B17 Rx Clock +
A18 Not connected B18 Not connected
A19 Not connected B19 Not connected
A20 DTR (Data termi-
nal ready).
B20 DTR (Data
termi-nal
ready).
A21 Not connected B21 Not connected
A22 Not connected B22 Not connected
A23 Not connected B23 Not connected
A24 Not connected B24 Not connected
A25 Not connected B25 Not connected
1
13
14
25