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19. External Relay
A Viking remote model RC-4A relay controller can be used to activate up to four external relays (see page 23). With
the external relay set to "EXT " the 300TB-IP will activate an optional RC-4A relay controller.
Factory Setting: Disabled
20. Ext Relay Mode
Door Strike Mode: When programmed for Door Strike Mode the relay is intended for door strike, magnetic lock or
gate control.
Outbound Call Mode: When programmed for Outbound Call Mode the relay will activate continuously for the duration
of any outbound call from the speaker phone.
Phone / Paging Mode: When programmed for Phone/Paging Mode the relay will activate continuously for the duration
of any SIP or multicast page or any inbound or outbound call to or from the speaker phone. This mode is useful for
triggering paging amplifiers, etc.
Doorbell Mode: When programmed for Doorbell Mode the speaker phone will momentarily activate the relay for the
preprogrammed relay activation time on any outbound call from the speaker phone. This mode is useful for activating
a door chime, etc. When activating door chimes, a 0.5 - 1 second relay activation time is recommended.
Ring Mode: When programmed for Ring Mode the relay will continuously activate while the ringing extension is called.
This mode is useful for activating a Viking model SL-2 strobe light, etc.
Ring Flash Mode: When programmed for Ring Flash Mode the relay will momentarily turn on and off in a 400 ms on/off
cadence while the ringing extension is called. This mode is useful for activating a Viking LPL-1 Remote Visual Indicator, etc.
21. Ext Relay Activation Command
The one or two digit code stored in the Relay Activation Command is the touch tone command that the person being
called must enter on their phone in order to momentarily activate the relay to control a door strike, magnetic lock, gate
controller, or other device. The code can contain the characters 0-9, # or Q. The code cannot match a relay latching
command (Q1, Q0). The code must be entered while the remote phone is communicating with the speaker phone.
Factory Setting: QQ.
15
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