Installation & Connections
Overview
2-18
SpectraComm SDT
076R174-000
Installation and Operation Manual
Issue 4
Note
The 26-pin connector pins 21 and 26 are connected together.
Table 2-14
X.21 DCE Serial Cable Pinouts
26-pin
Signal Name
Note
Direction
DB15-pin
Signal Name
21
MODE_2
1
14
TXD/RXD+
TXD/RXD-
Twisted
Pair
-->
-->
4
11
RECEIVE-
2
15
TXCE/RXC+
TXCE/RXC
Twisted
Pair
-->
-->
6
13
TIMING-
5
18
RXD/TXD+
RXD/TXD-
Twisted
Pair
<--
<--
2
9
T
TRANSMIT-
8
9
RTS/CTS
DTR/DSR+
Twisted
Pair
-->
-->
5
12
IND
INDICATION-
10
11
DSR/DTR+
CTS/RTS+
Twisted
Pair
<--
<--
10
3
CONTROL-
26
GND
---
8
CCT GND
Shell
Drain Wire Shield
Pin 1 to Shell
Shield_GND
Summary of Contents for SpectraComm SDT
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