JK Audio Four IFB - Manual (Page 8)

8
Features
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13
Operation (continued) Features (continued)
14. IFB 1-4 selector switches - These rotary switches control from
which phone line audio passes to the corresponding IFB XLR
output jack. For instance, IFB 1 rotary switch set to position 4
would send audio from phone line 4 to the IFB 1 output.
15. DTMF keypad - Used to dial calls on the Monitor phone line.
16. Monitor selector switch - This rotary switch determines which
phone line is designated as Monitor. For instance, setting this
switch to position 4 would allow phone line 4 to take advantage
of all Monitor functions.
17. Add button - Pressing this button takes the Monitor phone line
off-hook.
18. Drop button - Pressing this button drops (hangs up) any call on
the Monitor phone line.
19. Control cover - Hinged control cover protects rotary switches,
buttons and keypad. Cover locks into place with ½ turn of lock-
ing latch.
20. Battery - Slide out compartment for a single 9 VDC battery.
All active functions of the Four IFB require that AC or battery
power is present and that the Power Switch is in the “On”
position.