Local Power Supply Unit - Siemens optiPoint 500 Service Manual

System-specific telephones, key modules, adapters, accessories, service providers
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Product Description
Accessories
2.5.3

Local Power Supply Unit

You may need to use an optiset E local power supply unit to extend the range or operate addi-
tional options. The local power supply unit has two RJ11 jacks and is packaged with the con-
necting cable.
If the supply voltage exceeds 21 V, all devices are reset and any calls in progress released.
Line voltage
AC line frequency
Max. output voltage
Min. output voltage
Max. output current
Pin
1
Not used
2
- pole
3
Tip
4
Ring
5
+ pole
6
Not used
Primary/Client Configuration (see Section 5.5 on page 5-11)
The local power supply can be looped into the connecting line of the primary or client tele-
phone.
If a local power supply is connected in front of the client telephone, the phone adapter detects
this local power supply
(via pins 2+5) and turns off the power to the client telephone.
In this case, only the signals are received via the U
If the power to the client fails, the phone adapter reactivates the power supply.
If the local power supply unit is connected in front of a primary telephone, the supplementary
power is fed via a diode. Because the optiset E local power supply unit has a higher voltage, it
supplies the power to the equipment.
2-18
Name
Assignment
Value
220 (230) V
47-53 Hz
50 V
30 V
250 mA
interface.
P0/E
P31003-E8400-A100-3-7620
Service Manual

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