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Det-Tronics EQP Fire and Gas Detection/Releasing System User Manual

Page 18

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14.1

95-8533

2-12

EQ25xxsam signal audible module
The EQ25xxSAM Series Signal Audible Module (SAM)

(see Figure 2-16) provides two indicating circuits for

controlling UL Listed 24 vdc polarized audible/visual

indicating appliances.

The device is located on the LON and is controlled by

programmable logic in the Controller.

Each output circuit is independently programmable to

allow notification of separate events. Each output can

be individually activated for any one of the following

pre-defined outputs:

1. Continuous
2. 60 beats per minute
3. 120 beats per minute
4. Temporal pattern.

Device outputs operate in the reverse polarity manner

when activated. Each output is rated at 2 amperes.

Auxiliary power input terminals are provided for

additional 24 vdc signaling power where required.

The output circuits are supervised for open and short

circuit conditions. If a wiring fault occurs, a trouble

condition will be indicated at the Controller.

Refer to the EQ25xxSAM Specification Data sheet

(form number 90-1129) for additional information

Figure 2-16—Signal Audible Module

EQ22xxiDC series initiating Device Circuit (iDC)
There are three IDC models available (see Figure 2-17):

The EQ22xxiDC allows discrete inputs from smoke/

heat detectors, manual call stations or other contact

devices.

The IDC accepts two dry contact inputs for use with

devices such as relays, pushbuttons, key switches,

etc. The IDC supports ANSI/NFPA 72 Class B

supervised input circuits

Each circuit requires its own end of line (EOL) resistor

for monitoring circuit continuity. Nominal resistance of

the resistor is 10 k ohms.

The EQ22xxiDCGF Initiating Device Circuit Ground

Fault Monitor (IDCGF) responds to the presence of a

ground fault within the power circuitry of the system.

It provides an unsupervised dry contact input and

ground fault monitoring circuitry for indicating a power

supply trouble condition. It is intended for use with a

third party power supply.

The EQ22xxiDCsC Initiating Device Circuit Short

Circuit (IDCSC) is similar to the IDC, but supports

supervision per EN 54 for European installations.

Refer to the EQ22xxIDC Specification Data sheet

(form number 90-1121) for additional information.

Figure 2-17—Initiating Device Circuit

note

Input types (e.g. fire alarm, trouble, and gas
alarms) are configurable through Det-tronics
Safety System Software (S3).