Product comparison · 2 security door controllers

Dahua Technology ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485 vs Dahua Technology ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485

Key differences

Maximum number of doors
- ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485:2 door(s)
- ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485:4 door(s)
Relay inputs
- ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485:2
- ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485:4
Number of built-in relays
- ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485:2
- ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485:4
Alarm input channels
- ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485:4
- ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485:1

Differences highlightedShow differences only

Comparison of ASC4202B-D, ASC4204B-S
38 specifications	A Dahua Technology ASC4202B-D security door controller Housing 2 door(s) RJ-45 / RS-485 Model ASC4202B-D View product	B Dahua Technology ASC4204B-S security door controller Housing 4 door(s) RJ-45 / RS-485 Model ASC4204B-S View product
Technical details2 differ
Maximum number of doorsDiffers	2 door(s)	4 door(s)
Relay inputsDiffers	2	4
Performance2 differ
Number of built-in relaysDiffers	2	4
Alarm input channelsDiffers	4	1

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