Door Controllers

Door Control Relay Modules ensure compatibility of access hardware components and simplify system installation and troubleshooting. Different modules may be specified for one power supply.

UR Series

Universal Microprocessor Control Relays
CR4

Four Station Control Relays
ACM-1

Six Station Input Control Relays
EMC

Exit Device Sequencer Relays
FB-4

Multiple Fused Output Relays

Ever wish you could save time and money when programming multidoor projects? Troubleshooting product conflicts frustrating you? Are system maintenance headaches eating into your profit? SDC’s low cost comprehensive services are available when you purchase SDC locks, controller and power supply for door opening applications from your distributor.

System Design Analysis Services