Product comparison · 2 security door controllers

Dahua Technology ASC2202B-D security door controller Bare 2 door(s) RS-485 vs Dahua Technology ASC2204B-S security door controller Bare 4 door(s) RS-485

Key differences

Maximum number of doors
- ASC2202B-D security door controller Bare 2 door(s) RS-485:2 door(s)
- ASC2204B-S security door controller Bare 4 door(s) RS-485:4 door(s)
Alarm input channels
- ASC2202B-D security door controller Bare 2 door(s) RS-485:4
- ASC2204B-S security door controller Bare 4 door(s) RS-485:1

Differences highlightedShow differences only

Comparison of ASC2202B-D, ASC2204B-S
28 specifications	A Dahua Technology ASC2202B-D security door controller Bare 2 door(s) RS-485 Model ASC2202B-D View product	B Dahua Technology ASC2204B-S security door controller Bare 4 door(s) RS-485 Model ASC2204B-S View product
Technical details1 differ
Case design	Bare	Bare
Maximum number of doorsDiffers	2 door(s)	4 door(s)
Built-in UPS	No	No
Interface	RS-485	RS-485
Exit button supported	Yes	Yes
Number of users	100000 user(s)	100000 user(s)
Relay inputsKnown for one	4	Unknown — not stated by the source
Supported network protocolsKnown for one	Unknown — not stated by the source	IPv4; TCP; UDP
Performance1 differ
Wiegand interface	Yes	Yes
Number of Wiegand readers supported	4	4
Alarm input channelsDiffers	4	1
Active tampering alarm	Yes	Yes
Certification	CE/FCC/UL	CE/FCC/UL
Poweridentical
Operating voltage	12 V	12 V
Operating current	1.4 A	1.4 A
Power consumption (typical)	41.6 W	41.6 W
Power consumption (no load)	0.8 W	0.8 W
Ports & interfacesidentical
RS-485 ports	5	5
Operational conditionsidentical
Operating temperature (T-T)	-30 - 60 °C	-30 - 60 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Weight & dimensionsidentical
Depth	50 mm	50 mm
Height	106 mm	106 mm
WeightKnown for one	600 g	Unknown — not stated by the source
Width	210 mm	210 mm
Packaging dataidentical
Package depth	87 mm	87 mm
Package height	166 mm	166 mm
Package width	255 mm	255 mm
Package weightKnown for one	Unknown — not stated by the source	600 g

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.