![](/images/new-backgrounds/1190971/19097199x1.webp)
Cable Pin Assignments
V.35 Connection Cable Pin Assignments
The connector that plugs into the rear panel of
CCITT |
|
| Direction |
|
|
Code | Pin | Name | DCE DTE | Function | Description |
|
|
|
|
|
|
101 | A | PG |
| Protective Ground | Machine ground |
|
|
|
|
|
|
102 | B | SG |
| Signal Ground | Ground reference for all circuits |
|
|
|
|
|
|
105 | C | RTS | ← | Request to Send | DTE has message to send |
|
|
|
|
|
|
106 | D | CTS | → | Clear to Send | DCE is ready to accept and transmit DTE data |
|
|
|
|
|
|
107 | E | DSR | → | Data Set Ready | DCE is ready to operate |
|
|
|
|
|
|
109 | F | RLSD | → | Data Channel | DCE is receiving a carrier signal |
|
|
|
| Received Line Signal |
|
|
|
|
| Detector |
|
|
|
|
|
|
|
108 | H | DTR | ← | Data Receiver Ready | DTE is ready to operate |
|
|
|
|
|
|
141 | L | LL | ← | Local Loopback | Local loopback |
|
|
|
|
|
|
140 | N | RDL | ← | Loopback/Maintenan | Remote loopback |
|
|
|
| ce |
|
|
|
|
|
|
|
103 | P | TXD | ← | Transmit Data (A) | Data generated by DTE |
|
|
|
|
|
|
104 | R/D | RXD | → | Received Data (A) | Data received by DTE |
|
|
|
|
|
|
103 | S | TXD | ← | Transmitted Data (B) | Data generated by DTE |
|
|
|
|
|
|
104 | R | RXD | → | Received Data (B) | Data received by DTE |
|
|
|
|
|
|
113 | U | EXT | ← | Transmitter Signal | To help detect center of signaling element on BA |
|
| CLK |
| Element Time (A) |
|
|
|
|
|
|
|
115 | V | RSET | → | Receiver Signal | To help detect center of signaling element on BB |
|
|
|
| Element Timing (A) |
|
|
|
|
|
|
|
113 | W | EXT | ← | Transmitter Signal | To help detect center of signaling element on BA |
|
| CLK |
| Element Timing (B) |
|
|
|
|
|
|
|
115 | X | RSET | → | Receiver Signal | To help detect center of signaling element on BB |
|
|
|
| Element Timing (B) |
|
|
|
|
|
|
|
114
Y TSET
→
Transmit Signal Element Timing (A)
To help detect center of signaling element on BA
114
a
TSET
→
Transmit Signal Element Timing (B)
To help detect center of signaling element on BB
142
n
TST
→
Test Indicator
Reserved for test
October 1997 |