12
MINI INTERFACE CONVERTERS
4. Schematic Diagrams
Figure 4-1. IC951A.
Ia
5
Ib
12
Ca
3
RSa
7
Cb
10
X.21 (DTE)
FEMALE
Signal
GND
V.36 (DCE)
MALE
1
1
Signal
GND
20, 37, 19
8
Protective
GND
Shield
Ra
4
Rb
Sa
Sb
13
+
-
11
6
* Wall-mount transformer should be 9V/300 mA DC.
RSb
25
13
31
+
-
RRa
RRb
Ta
2
RTb
26
SDa
4
22
SDb
+
-
+
-
8
RTa
+
-
RDb
24
6
RDa
Tb
9
CO
CI
ELASTIC
BUFFER
DO
DI
+
-
STa
STb
23
5
Содержание IC951A
Страница 21: ...NOTES ...