Numens - Model 621-001 -analogue addressable single input modules

621-001 analogue addressable single input modules provide the interface to connect an electrically isolated dry-contact switch inputs to addressable fire detection control and indicating equipment. Up to 125 modules can be connected to each alarm zone loop. A parallel resistive input filter allows multiple states to be monitored at the input. The states are converted to the loop communications protocol by the module, to enable them to be displayed on the control and indicating equipment. The 621-001 input module provides fire detection and alarm system designers with a Standards-compliant, premium product for life safety and property protection applications.

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· Single electrically isolated input for connection to dry contacts

· Monitors and signals three distinct input states

§ Normal

§ Alarm

§ Open-circuit

· Polling indicator shows quiescent operation

· Separate indicators for Quiescent, Alarm and Fault conditions

· Surface-mount device (SMD) circuit board design

· DC 24 V operation

· Easy installation with simple address setting DIP switches

· Convenient 2-wire connection

· Available with 125 usable address settings per loop when connected to Numens control and indicating equipment

· Low maintenance

	621-001
Operating voltage	DC (17 ~ 30) V
Start-up current	400 µA
Quiescent current with 22 k? EOL fitted	≤ 400 µA
Alarm current with Alarm LED on	3 mA
Input voltage (pulsed)	DC (5 ~ 9) V
Sampling time	1 s
Resistance for input short-circuit condition	≤ 2k2 ?^a
Resistance for input Alarm condition	(2k2 ~ 8k2) ?^a
Resistance for input Quiescent condition	(8k2 ~ 47k) ?^a
Resistance for input open-circuit condition	≥ 47 k?^a
Number of inputs	1
Alarm indicator	Red
Polling indicator	Flashing green
Terminal wiring	(0.4 ~ 2.5) mm²
Usable addresses per alarm loop	125
Operating temperature	(-10 ~ +50) °C
Operating humidity	(0 ~ 95) % RH, non-condensing
Storage temperature	(-25 ~ +80) °C
Storage humidity	(0 ~ 98) % RH, non-condensing
Dimensions (h × w × d)	(95 × 95 × 42) mm
Ingress protection rating	IP-54

EN 54-18 ^{a, b}

621-001

√

^aEN 54-18 Fire detection and fire alarm systems — Input/output devices

^bThird-party conformance assessment has not been undertaken.

Numens - Model 621-001 -analogue addressable single input modules

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