Wiring – GAI-Tronics 352-001 UL Class I Division 1 Telephones User Manual
Page 7
Pub. 42004-454A
Model 352-001, 352-002, 352-003, and 352-004 Division 1 Telephones
Page: 7 of 13
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Wiring
WARNING
The front cover is not hinged to the rear enclosure. When the cover bolts are
removed, the cover must be adequately supported.
1. While supporting the front cover, remove the ten cover bolts on the enclosure flange. Pull the front
cover far enough away to expose the internal connections and disconnect any wiring between the
front cover and rear enclosure. Place the front cover aside.
2. Connect the incoming subscriber line or the telephone line suppressor (if applicable) to TB1 on the
main PCBA. If there is not a Ring Relay PCBA present, see Figure 7.
Figure 7.