4
T A L K S W I T C H I N S TA LL A T I O N
UNIT BACK PANEL
Figure 2: TalkSwitch 240vs, 244vs and 248vs
Figure 3: TalkSwitch 280vs, 284vs and 288vs
Figure 4: TalkSwitch 480vs, 484vs and 488vs
Figure 5: TalkSwitch 840vs, 844vs and 848vs
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
jack E4 is able to receive and make calls on Line 1.