Electronic Station Jack Wiring - Vodavi Starplus Triad 1/2/3 Installation Manual

Station Wiring
Electronic Keyset and Terminal Wiring
Wiring from the ETIB to station jack requires two pairs of wire. The first
pair provides the audio or voice path, the second is for signaling or data
path. The DATA pair is polarity sensitive, reversal does not harm the
keyset or system, but the port does not function properly when reversed.
Power is delivered by applying DC voltage to the center tap of the
coupling transformers of each of the 2 pairs.
connections of station jacks to the system and
configuration of the 25-pair station connector arrangement and
punchdown type block.
Figure 3-30: Electronic Station Jack Wiring
Only the first pair (Red, Green on jack) should be connected back tothe
KSU. No other pairs should be connected back to the KSU.
Figure 3-26 gives details on
Table 3-19gives the
3-85