Black Box IC951A, User Manual

Page: 15 / 22

14
MINI INTERFACE CONVERTERS
Figure 4-3. IC954A-M.
CS-a
9
CTS
CS-b
27
DM-a
11
DSR
DM-b
29
TR-a
12
TR-b
30
RR-a
13
DCD
8
RR-b
31
5
6
RS-a
7
RTS
4
RS-b
25
V.36 (DTE)
Signal GND
V.24 (DCE)
1 1
Signal GND
7 19, 37, 20
Frame GND Shield
R
R
R
DTR
20
R
R
ST-b
23
ST-a
5
RT-a
TC
RT-b
15
TT-a
TT-b
SD-a
SD-b
RD-a
RD-b
LL LL
18
RL RL
21
TM TM
25
17
TD
2
+
-
4
22
EXT-TC
24
+
-
35
RC
17
8
26
RD
3
6
24
10
14
18
NC
NC
NC
R = 100
Ω