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| This chapter describes the
pin assignments for the following WAN interfaces: |
| |
| E1 |
|
| RS-232 (V.24) |
|
| RS-530 |
|
| RS-449/RS-422 |
|
| V.35 |
|
| X.21 |
|
| T1 |
|
E1
E1 DA15 (D-type)
E1 DA15 cables have D-type 15 pin connectors.
The pin assignments for the cables are as follows:
| Pin 1 |
Transmit positive (TTIP) |
| Pin 3 |
Receive positive (RTIP) |
| Pin 9 |
Transmit negative (TRING) |
| Pin 11 |
Receive negative (RRING) |
| Pins 2, 4, 5-8, 10, and 12-15
are not used. |
E1 RJ48
Pin assignments for RJ48 cables are as follows:
| Pin 1 |
Transmit negative (TRING) |
| Pin 2 |
Transmit positive (TTIP) |
| Pin 4 |
Receive negative (RRING) |
| Pin 5 |
Receive positive (RTIP) |
| Pins 3, 6, 7, and 8 are
not used. |
E1 BANTAM
Pin assignments for BANTAM cables are as
follows:
| Tip |
positive |
| Ring |
negative |
| Sleeve |
ground |
RS-232 (V.24)
RS-232 cables have D-type 25 pin connectors.
Pin assignments for RS-232 cables are as follows:
| Pin 1 |
Protective Ground (Shield) |
| Pin 2 |
Transmit Data |
| Pin 3 |
Receive Data |
| Pin 4 |
Request To Send |
| Pin 5 |
Clear To Send |
| Pin 6 |
Data Set Ready |
| Pin 7 |
Signal Ground |
| Pin 8 |
Data Carrier Detect |
| Pin 15 |
Transmit Clock (from DCE) |
| Pin 17 |
Receive Clock |
| Pin 18 |
Local Analog Loopback |
| Pin 20 |
Data Terminal Ready |
| Pin 21 |
Remote Digital Loopback |
| Pin 22 |
Ring Indicator |
| Pin 24 |
Transmit Clock (from DTE) |
| Pin 25 |
Test Mode |
| Pins 9-14,
16, 19 and 23 are not used. |
RS-530
RS-530 cables have D-type 25 pin connectors.
Pin assignments for RS-530 cables are as follows:
| Pin 1 |
Protective Ground (Shield) |
| Pins 2, 14 |
Transmit Data |
| Pins 3, 16 |
Receive Data |
| Pins 4, 19 |
Request To Send |
| Pins 5, 13 |
Clear To Send |
| Pins 6, 22 |
Data Set Ready |
| Pin 7 |
Signal Ground |
| Pins 8, 10 |
Data Carrier Detect |
| Pins 9, 17 |
Receive Clock |
| Pins 11, 24 |
Transmit Clock (from DTE) |
| Pins 12, 15 |
Transmit Clock (from DCE) |
| Pin 18 |
Local Analog Loopback |
| Pins 20, 23 |
Data Terminal Ready |
| Pin 21 |
Remote Digital Loopback |
| Pin 25 |
Test Mode |
RS-449/RS-422
RS-449 cables have D-type 37 pin connectors.
Pin assignments for RS-449 cables are as follows:
| Pin 1 |
Protective Ground (Shield) |
| Pins 4, 22 |
Transmit Data |
| Pins 5, 23 |
Transmit Clock (From DCE) |
| Pins 6, 24 |
Receive Data |
| Pins 7, 25 |
Request To Send |
| Pins 8, 26 |
Receive Clock |
| Pins 9, 27 |
Clear To Send |
| Pin 10 |
Local Analog Loopback |
| Pins 11, 29 |
Data Set Ready |
| Pins 12, 30 |
Data Terminal Ready |
| Pins 13, 31 |
Data Carrier Detect |
| Pin 14 |
Remote Digital Loopback |
| Pin 15 |
Ring Indicator |
| Pins 17, 35 |
Transmit Clock (From DTE) |
| Pin 18 |
Test Mode |
| Pin 19, 37 |
Signal Ground |
| Pins 2, 3, 16, 20, 21,
28, 32, 33, 34 and 36 are not used. |
V.35
Pin assignments for V.35 cables are as follows:
| Pin A |
Protective Ground (Shield) |
| Pin B |
Signal Ground |
| Pin C |
Request To Send |
| Pin D |
Clear To Send |
| Pin E |
Data Set Ready |
| Pin F |
Data Carrier Detect |
| Pin H |
Data Terminal Ready |
| Pin J |
Ring Indicator |
| Pins P, S |
Transmit Data |
| Pins R, T |
Receive Data |
| Pins U, W |
Transmit Clock (from DTE) |
| Pins V, X |
Receive Cloc |
| Pins Y, AA |
Transmit Clock (from DCE) |
| Pin N |
Remote Digital Loopback |
| Pin L |
Local Analog Loopback |
| Pin NN |
Test Mode |
X.21
X.21 cables have D-type 15 pin connectors.
Pin assignments for X.21 cables are as follows:
| Pin 1 |
Protective Ground (Shield) |
| Pins 2, 9 |
Transmit |
| Pins 3, 10 |
Control |
| Pins 4, 11 |
Receive |
| Pins 5, 12 |
Indication |
| Pins 6, 13 |
Signal Timing |
| Pins 7, 14 |
Terminal Transmit Clock |
| Pin 8 |
Signal Ground |
| Pin 15 is not
used. |
T1
T1 DA15
T1 DA15 cables have D-type 15 pin connectors.
Pin assignments for T1 DA15 cables are as follows:
| Pin 1 |
Transmit positive (TTIP) |
| Pin 3 |
Receive positive (RTIP) |
| Pin 9 |
Transmit negative (TRING) |
| Pin 11 |
Receive negative (RRING) |
| Pins 2, 4, 5-8, 10, and 12-15
are not used. |
T1 RJ48
Pin assignments for RJ48 cables are as follows:
| Pin 1 |
Transmit negative (TRING) |
| Pin 2 |
Transmit positive (TTIP) |
| Pin 4 |
Receive negative (RRING) |
| Pin 5 |
Receive positive (RTIP) |
| Pins 3, 6, 7, and 8 are not used. |
T1 BANTAM
Pin assignments for BANTAM cables are as
follows:
| Tip |
positive |
| Ring |
negative |
| Sleeve |
ground |
|
