IBM 3708 Planning And Installation page 235

Cable
M~rking
The cable should be labeled on the IBM Cabling System end of the cable, and the
label should be located I foot from the connector strain relief.
The label should contain the following:
FROM 3798 to IBM CABLING SYSTEM
VIA EIA 422A
CABLE LENGTH 8.9 FT
DATE OF MANUFACTURE
_1_
(see Note)
Note: Date of Manufacture should be week/year.
Surge Suppression Attachment - Pin ASSignments and Connections
For EIA 422A Cable Attachment to IBM Cabling System
3708 Connector End
25 Pin Male
Remote Connector End
Cabling System Connector
Frame Ground
Signal Ground 7 - ,
Select EIA 422A 13--.J
-Transmit Data
-Receive Data
Outer Shield - Frame Ground
Signal Ground
Select EIA 422A
---j1---12 -Transmit Data
---j1---16 -Receive Data
• - Outer Shield - •
~3
:J
12 -TP1 - Black
16 -TP2 - Green
+
Transmit Data
----o~-14
+
Transmit Data 14-TP1 - Orange
+
Receive Data 19
+
Receive Data 19 -TP2 - Red
Surge Suppression Attachment EIA 422A to IBM Cabling System
• =
Outer shield clamped to connector shell.
01
=
Diode Type
BZW06-8V5
02
=
Diode Type
BZW06-8V5B
TP
=
Twisted Pair; Like numbers indicate matched pair.
Note: PIN positions that are not specified must not be wired or populated with
pins.
D~14
3708 Planning and Installation