Cables and Pin Assignments
V.35 User Data Port Connector
The following table provides the pin assignments for the
V.35 connector to the User Data terminal equipment.
Signal
ITU CT
Number Direction
34-Pin Socket Connector
Signal Ground/Common | 102 | Ð | B |
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Request to Send (RTS) | 105 | To DSU (In) | C |
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Clear to Send (CTS) | 106 | From DSU (Out) | D |
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Data Set Ready (DSR) | 107 | From DSU (Out) | E |
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Received Line Signal Detector | 109 | From DSU (Out) | F |
(RLSD or LSD) |
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Data Terminal Ready (DTR) | 108/1, /2 | To DSU (In) | H |
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Remote Loopback (RL) | 140 | To DSU (In) | N |
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Local Loopback (LL) | 141 | To DSU (In) | L |
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Transmitted Data (TXD) | 103 | To DSU (In) | P (A) |
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| S (B) |
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Received Data (RXD) | 104 | From DSU (Out) | R (A) |
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| T (B) |
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Transmitter Signal Element Timing ± | 113 | To DSU (In) | U (A) |
DTE Source (XTXC or TT) |
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| W (B) |
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Receiver Signal Element Timing ± | 115 | From DSU (Out) | V (A) |
DCE Source (RXC) |
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| X (B) |
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Transmitter Signal Element Timing ± | 114 | From DSU (Out) | Y (A) |
DCE Source (TXC) |
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| AA (B) |
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Test Mode Indicator (TM) | 142 | From DSU (Out) | NN |
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November 1997 |