Pub. 42004-547A
NEMA 4X VoIP Telephones
Page 3 of 17
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Hardware Description
External
NEMA 4X VoIP telephones may contain a handset, standard keypad, volume control push button, and
ringer. The handset rests on a cradle that has a magnetic reed switch to signal an off-hook condition (see
Figure 2).
Figure 2. NEMA 4X VoIP Telephone
Internal
The Model 354-71x NEMA 4X VoIP telephones include a relay PCBA and a ringer in the rear enclosure.
The front cover holds the main VoIP carrier PCBA, VoIP circuit PCBA, and keypad PCBA (see Figure
3).
Figure 3. Model 354-710 NEMA 4X VoIP Telephone
