Installation & Connections
Overview
2-12
SpectraComm SDT
076R174-000
Installation and Operation Manual
Issue 4
Note
The 26-pin connector pins 22 and 26 are connected together.
Table 2-8
RS-449 DCE Serial Cable Pinouts
26-pin
Signal Name
Note
Direction
DB37-pin
Signal Name
22
MODE_1
NOT USED
Twisted
Pair
---
19
20
SG
RC
1
14
TXD/RXD+
TXD/RXD-
Twisted
Pair
-->
-->
6
24
RD+
RD-
2
15
TXCE/RXC+
TXCE/RXC-
Twisted
Pair
-->
-->
8
26
RT+
RT-
3
16
TXC/TXC+
TXC/TXC-
Twisted
Pair
-->
-->
5
23
ST+
ST-
4
17
RXC/TXCE+
RXC/TXCE-
Twisted
Pair
<--
<--
17
35
TT+
TT-
5
18
RXD/TXD+
RXD/TXD-
Twisted
Pair
<--
<--
4
22
SD+
SD-
6
19
DCD/DCD+
DCD/DCD-
Twisted
Pair
-->
-->
13
31
RR+
RR-
7
20
DTR/DSR+
DTR/DSR-
Twisted
Pair
-->
-->
11
29
DM+
DM-
8
9
RTS/CTS+
RTS/CTS-
Twisted
Pair
-->
-->
9
27
CS+
CS-
10
11
CTS/RTS-
CTS/RTS+
Twisted
Pair
<--
<--
25
7
RS-
RS+
12
25
DTR/DSR+
DTR/DSR-
Twisted
Pair
<--
<--
12
30
TR+
TR-
13
26
LL/LL+
GND+
Twisted
Pair
-->
---
10
37
LL
SC
Shell
Drain Wire Shield
Pin 1 to Shell
Shield_GND
Содержание SpectraComm SDT
Страница 73: ......
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