6XX SERIES DRM (Dual Reader Module)
Door Reader Module: The DRM board has two independent reader ports per board and two relays for each reader port. The DRM offers supervision of door contacts and provides surge protection to guard against equipment damage from electrical spikes.
635 DRM provides an additional RS-485 port, which allows it to be remotely distributed over doors in multi-drop configuration.
Document(s):
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Features
600/635 Dual Reader Module (DRM). The DRM is mounted in the controller next to/under the CPU. All signals from the port connections are routed through the DRM to the CPU.
STANDARD CARDS SUPPORTS: Proximity 125KHz 2 readers (doors) per DRM Barcode 16 readers per DSI-485 port Magnetic Stripe Biometric Identification and Authentication SMART CARDS GOVERNMENT COMPLIANT HID® iClass® HSPD-12 & FIPS 201 Compliant MIFARE® CHUID 75 bits, FASC-N 200 BITS (controller accepts up to 256 bits) MIFARE DESFire™ PIV, PIV-II, TWIC cards MIFARE DESFire™ EVI CAC-Legacy, Transition, Endpoint Option to perform PKI challenge to the Personal Certificate (PAK)
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Benefits
The DRM contains the surge protection necessary to absorb electrical spikes and prevent damage to other devices.