Single Unit Power Supply; Powering Multiple Units Over The Lan - Tadiran Telecom FlexSet 280 Manual

Figure 8-1 115/230VAC TPS
(Telephone Power Supply)

Single Unit Power Supply

The manufacturer supplies an external, single unit power supply, the TPS (Telephone Power
Supply) - AC Wall Power Adapter:
TPS AC Wall Power Adapter:
115VAC 60Hz in, 24VDC 15Wmax.out - CN7244-0950710
230VAC 50Hz in, 24VDC 15Wmax.out - CN7244-0950810
230VAC 50Hz in, 36VDC 15Wmax.out - CN7244-0950610 (discontinued)
The power pin's cylindrical, external conductor must be positive and the internal pin negative.
No damage will occur if the polarities are reversed, however the unit will not function.
If using a single unit power supply:
1. Plug the TPS power adapter into a 115/230 VAC receptacle.
2. Insert the TPS plug into the jack marked "DC" on the rear of the FlexSet base.
115VAC
60Hz
Cat. Number: 72440950710

Powering Multiple Units over the LAN

A central power supply can be used to power all the telephones instead of using individual
power supplies for each unit. In this case four wires must be provided to each FlexSet 280/281
equipped with PEX and PEX/APA unit and to every FlexSet 80 (GKT) or CPA - two for audio,
two for external power. In addition, appropriate wiring of an IDF (Intermediate Distribution
Frame) on the customer's premises must be done.
230VAC
50Hz
Cat. Number: 72440950810
24VDC
Coral Terminal Equipment
Positive
Negative
8-3