Table of Contents
Advertisement
Section 3. IBM 3708 EIA422A Interface Cables
Cable Types
The following sections describe the EIA 422A cables available form IBM.
The cables used for 3708 EIA 422A interface to DTE come in three lengths. This
section describes the cable requirements. The part numbers for these cables are
provided in the following· table.
Length
Up to 122 m (400 ft)
From 122 m (400 ft) to 1219 m (4000 ft)
38 m (125 ft)
DTEM/M
PN 6405396
PN 6405397
PN 6405398
The cable length should not exceed 1219 meters (4000 feet). Surge suppressor
attachments are recommended on cable lengths that exceed 120 meters (400 feet).
Bulk Cable Requirements
Overall Shield
Outside Jacket
Conductor Requirements
Conductors
Material
Insulation
Voltage Rating
D-l0
3708 Planning and Installation
Shield must be #36 tinned copper braid with a minimum
coverage of 85%.
PVC
Two twisted pairs (four conductors). The lay of the
individual pairs is not to exceed one inch. The two twisted
pairs may be twisted together. If they are twisted together,
the lay must be greater than the lay of the individual twisted
pairs.
#22 AWG, 7x30 stranded, tinned copper
SRPVC
ULRating of 300 V at 80 degrees C
Advertisement
Table of Contents
