Hardware manual

Electra Elite Issue 8
System Hardware Manual 7 - 15
Refer to Table 7-3 APA-U Unit Switch Settings for SW3.
3.3.3 Connecting Cables on the APA-U Unit
Plug the telephone cord from the Single Line Telephone
into the modular jack on the APA-U Unit. Refer to Figure
7-18.
Limit the cable length from the APA-U Unit to the Single
Line Telephone to a maximum of 50 feet.
Table 7-3 APA-U Unit Switch Settings for SW3
Switch Description
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 7-18 Connecting Cables on the APA-U Unit