User guide

TALKSWITCH INSTALLATION 3
1.4 UNIT BACK PANEL
Figure 2: TalkSwitch 240vs and 244vs
Figure 3: TalkSwitch 280vs and 284vs
Figure 4: TalkSwitch 480vs and 484vs
The PF box between E4 and L1/L2 represents power failure support. In the
event of a power failure or loss of power to TalkSwitch, extension port E4
is able to receive and make calls on Line 1.
Ports Purpose
MUSIC The music connector is a 1/8" (3.5mm) phono jack used as an
audio input for the music on hold feature. Mono cables are
recommended. For more information, see 1.9.3 Connecting
devices to the music jack on page 21.
PA The PA (public address) connector is a 1/8" (3.5mm) phono jack
used as an audio output for the external paging feature. Mono
cables are recommended. For more information, see 1.9.4
Connecting to the PA (public address) jack on page 21.