IBM
IBM
IBM
5
4
3
2
Front View
of Jack
6 5 4 3 2 1
TD
RD
SG
From COM 1
Serial Data Port
Typical VDT
Interface
Typical
625A2
Modular
Jack
Industry Standard
Modular Line Cord
(4-conductor)
Typical modular to EIA adapter
wiring shown for reference only.
Typical Personal Computer
Typical
Data Printer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
Front
View of
Jack
SG
RD
TD
5
4
3
2
Front View
of Jack
6 5 4 3 2 1
TD
SG
From COM 2
Serial Data Port
Typical Data
Printer Interface
Typical
625A2
Modular
Jack
Industry Standard
Modular Line Cord
(4-conductor)
Typical modular to EIA adapter
wiring shown for reference only.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
Front
View of
Jack
SG
RD
263.
CAJS105
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
Front View
of 6-Conductor
Modular Jack
Rear View
of 9-Pin Female
EIA Connector
SG
TD
RD
CTS
Typical Modular To 9-Pin EIA Adapter
Wiring Shown For Reference Only
Connecting Data Devices Through Modular Connections
DSU II Digital Telephone System
IMI66–132
Installing The DSU II Digital Telephone System 2 – 35
Summary of Contents for DSU II
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