NEC ElectraElite 48, System Hardware Manual

Page: 310 / 435

Electra Elite Issue 6
System Hardware Manual 7 - 19
Refer to Table 7-4 APR-U Unit Switch Settings for SW1
and SW3 .
3.4.3 Connecting Cables on the APR-U Unit
Plug the telephone cord from the Single Line Telephone
into the modular jack on the APR-U Unit.
Limit the cable length from the APR-U Unit to the Single
Line Telephone to a maximum of 50 feet.
Table 7-4 APR-U Unit Switch Settings for SW1 and SW3
Switch Description
SW1–1 Do not use
SW1–2
A Single Line Telephone and Multiline
Terminal are used alternately.
(The Multiline Terminal and the APR-U Unit
share the same B1 channel.)
SW3–1
Sets impedance to 600 : for devices such as
modems or facsimile machines
SW3–2
Used for complex impedance devices such as
Single Line Telephones.
Figure 7-24 Connecting Cables on the APR-U Unit