External Relay Control - Panasonic KX-TAW848 Features Manual

1.15 Optional Device Features
• After a sensor has been activated, the PBX will ignore any further alerts from the same sensor for the
duration specified by a timer. This timer can be set separately for each sensor.
• As long as the previous sensor call is still being performed, any further alerts from the same sensor are
ignored.
• The assigned sensor name and/or number are shown on the display of PTs and PSs when a sensor
call is received.
• If the destination of a sensor call has set FWD, the sensor call will be redirected to the FWD destination.
However, if the FWD destination is not supported as the destination of a sensor call (e.g., an outside
party), the call will be received at the original destination. (→ 1.3.1.2 Call Forwarding (FWD))
• The following features cannot be used when a sensor call is received:
– Alternate Receiving—Voice (→ 1.5.3 Intercom Call)
– Hands-free Answerback (→ 1.4.1.4 Hands-free Answerback)
– Consultation Hold/Call Hold (→ 1.12.1 Call Hold)
– Call Transfer (→ 1.11.1 Call Transfer)
– Executive Busy Override (→ 1.7.2 Executive Busy Override)
– Remote Extension Control by User (→ 1.23.5 Remote Extension Control by User)
• Sensor call information is output on SMDR.
Installation Manual References
2.5.1 DPH4 Card
2.8.1 Connection of Doorphones, Door Openers, External Sensors, and External Relays

1.15.9 External Relay Control

Description
By turning external device relays on and off, the PBX can control external devices such as alarms.
When an extension user enters the External Relay Control feature number, the specified relay turns on for
a preprogrammed length of time. When this timer expires, the relay turns off automatically. This gives the
PBX simple control over other equipment, allowing an extension user to, for example, activate an alarm from
his extension.
If the relay cannot be accessed (for example, because use is not permitted by COS, or the port is not in
service), a reorder tone will be heard at the extension.
Conditions
• Hardware Requirement: An external relay device and the DPH card
• The port of the DPH4 card to which the relay is connected must be assigned through system
programming as a relay port (not a door opener port).
• Some devices may be unable to communicate correctly with the PBX. Confirm compatibility with the
manufacturer of a device before installing it.
• Each external relay port has a COS assigned. This and the COS of an extension determine the
extension users who can use External Relay Control.
• The length of time that a relay is turned on can be specified separately for each relay through system
programming.
• If the same or another extension tries to access an external relay that has already been switched on,
the timer for that relay is reset.
114 Feature Guide