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by the system and operates in an identical manner as the one in the main panel. If
communication fails it is processed locally.
5.8.5 MR-2312-SR(W)12 Smart Relay Module
•
Connects on the RS-485 loop along with other remote annunciators.
•
Provides 12 relay contact outputs which actuate according to the first 12 remote LED
groups.
•
Relays are bypassed by Auxiliary Bypass
•
Supervised as one of the (maximum) seven permitted annunciators.
5.9 Dialer Operation
The MR-3318 is equipped with a built-in dialer. The dialer provides a means to communicate
panel status to the remote central monitoring station using two dedicated phone lines. The two
standard protocols for communicating with the central monitoring station are supported by this
panel are as follows.
•
SIA Format Protocol
•
SIA Contact ID
5.9.1 Event Reporting
Events are reported in a special format depending upon the protocol selected. For a complete
description of the reporting codes see Appendix D - Reporting on page 72.
5.9.2 Telephone line supervision
The phone lines are supervised for the presence of
•
DC voltage.
•
dial tone, stuttered dial tone and message waiting tone.
Supervision is carried out every two minutes as follows:
1. DC voltage is supervised and if it is detected the dial tone is monitored.
2. If the phone lines are equipped with a house phone with proper connection and is in use
the supervision is suspended until the house phone is ON-HOOK again.
3. If there is an event to be reported in the dialer queue and the house phone is in use the
dialer tries the second line to report the event.
4. if that line’s house phone is also in use the dialer seizes the line. The dialer disconnects
the house phone and reports the event to the central monitoring station.
Attention: As per UL864 R9 section 40.3.2.13 the dialer is not to call a number that
is call forwarded.
The automatic telephone line test and trouble report must be sent to the
same supervising station.
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