Figure 11-54 Apr-L Unit - NEC Univerge SV8100 System Hardware Manual

Issue 1.0
11 - 76
When installing or removing the adapters, the telephone should be
unplugged from the system.
The APR-L UNIT supports reverse-polarity, message waiting lamping, or
Caller ID.
12.4.1 APR-L UNIT Switch Settings

Figure 11-54 APR-L UNIT

dip switches (DSW) allow a technician to configure the unit for
specific settings.
Due to location, set the switches prior to installation
of APR-L on DTL/ITL multiline terminal.
ANALOG PORT
Set the dip switches on the APR adapter to the required position.
1. Leave the SW1 switch at its factory setting of 1. This also
applies to the dip switch settings (1 and 5 = on; 2-4, 6-8 = off).
2. Use the SW3 switch to set the terminating impedance. Position
1 is for a pure resistance of 600 ohms; position 2 is for complex
impedance (factory setting is 1).
12.4.2 Installing the APR-L UNIT
Perform the following to connect the APR-L UNIT to the Bottom
Option Interface located underneath the DTL/ITL multiline terminal.
Only one APR-L UNIT can be installed.
shows the location of the switches. The
Figure 11-54 APR-L UNIT
Installing SV8100/SV8300 Optional Equipment
UNIVERGE SV8100/SV8300