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Table 2 shows the matching between current resistance values and corresponding statuses of alarm

loops of the Type 6.

An auxiliary alarm loop is always monitored; it cannot be blocked or disarmed. If the arming command

addressed to this loop is received, the device responds with the message about its current status.

When a status of an Auxiliary alarm loop has changed the Signal-10 transmits a relevant message to a

network controller. The events related to Auxiliary alarm loop are not stored in the Signal-10 non-

volatile memory. Thus, if a status of an Auxiliary alarm loop has changed several times during commu-

nication loss, after communication having restored the network controller receives either a single last

message or no message if the current status of the loop is just like as the last transmitted status.

If an Auxiliary alarm loop is related to a Signal-10 relay output, then its breaking locks starting the relay

in accordance with executive programs ##1 – 8 (general-purpose), #11 (ASPT), #2 (Siren), #33

(ASPT-1), #34 (ASPT-A), #35 (ASPT-A1), see Table 5. This functionality is suitable, for example, to

lock automatic starting of gas firefighting installations when a door in protected premises is open.

All normally closed and normally open detectors and other devices with dry contact outputs are includ-

ed into Auxiliary alarm loops similarly to that how intrusion detectors are included to alarm loops of the

Type 4 (see the page 65).

Entrance Alarm Loop (Type 7)

A loop of the Type 7 (Entrance) is intended to involve any intrusion detectors, both normally open and

normally closed, and powered either over the loop or separately. This loop is considered to be in one of

the following statuses:

Armed The alarm loop is monitored, its resistance being normal

Disarmed The alarm loop is not monitored

Arming Delay The programmed Arming Delay has not yet expired

Entrance Alarm The alarm loop has been broken

Intrusion Alarm Since breaking of the alarm loop the time of given Alarm Delay has

been expired

Arming Failed An attempt to arm the loop has failed because the loop is broken

An Entrance alarm loop is operated similarly to an Intrusion alarm loop, except this loop switches to the

Entrance Alarm status immediately after its breaking. Then, if this alarm loop is not disarmed or armed

until the Alarm Delay has been expired, the loop switches to the Intrusion Alarm status.

While the alarm loop is being in the Entrance Alarm status, no relay controlled in accordance with one

of the general-purposed executive programs (#1 – #8) or Siren program (# 12) is activated.

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