SDC CR4 Four Station Control Relays Instruction Manual

: June 1, 2024
: SDC

Table of Contents

IMPORTANT INFORMATION
MODELS
STANDARD FEATURES
APPLICATIONS
CROSS REFERENCE
SPECIFICATIONS
HOW TO ORDER
CUSTOMER SUPPORT
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SDC CR4 Four Station Control Relays

SDC CR4 Four Station Control Relays

IMPORTANT INFORMATION

Door control relay modules ensure compatibility of access hardware components and simplify system installation and troubleshooting. Modules may be ordered with or without power supplies. Different modules may be specified for one power supply.

SDC’s CR4 series control boards are designed to allow for independent control of up to four separate electrified locking devices by distributing the primary DC power supply output into four, individually controlled relay outputs. Each station of CR4 series module accepts a dry, normally open trigger input and provides one fused and one non-fused output. Each output is individually fused and selectable as wet or dry. Closing a switch across the trigger input will release the output for the amount of time that the trigger input is held closed. Output voltage is determined by input voltage. Additionally, LED visual status indicators provide relay activation status.

MODELS

CR4 Four Station Control Relay

STANDARD FEATURES

Reduced wiring, easier troubleshooting
Four independent stations
Four fused field selectable wet or dry outputs
Four non-fused outputs
Four dry contact trigger inputs
Auto-sensing dual voltage
Visual status indicators (LED)

APPLICATIONS

Control and distribute power to four individual door locks from a single power supply

CROSS REFERENCE

| CR4| ACM-1| EMC| FB-4| 12VR
---|---|---|---|---|---
| | | | |
Description| Four station control relays| Six input control relays| Dual channel exit device sequencers| Four output power distribution modules| Voltage power convertors
Application| Individual control of four locks| Control one lock with up to six activation devices| Sequence electrified panic device and operator for single or pair of doors| Distribute a single voltage output to four devices| Convert 24 VDC to regulated 12 VDC output
Inputs| (4) N/O, Dry| (3) N/O, Dry
(3) N/C, Dry| (2) N/O, Dry| (1) Power, 12/24 VDC| (1) Power, 24 VDC
Outputs| (4) SPDT, Fused, Wet or Dry
(4) SPDT, Unfused, Wet or Dry| (1) SPDT, Wet
(1) SPDT, Dry| (4) N/O, Dry| (4) Fused Class 2, On/Off, 12/24VDC (Matches input)| (1) Fused Class 2, 12 VDC
(1) Fused Class 2, 24 VDC

SPECIFICATIONS

| CR4
---|---
Input Voltage| 12/24 VDC ± 10%
Input Current (Max)| 150 mA
Dimensions| 41/4” x 313/32” x 5/8”
Stations| 4
Input Configuration (Per Station)| (1) Normally Open (N/O), Dry
Output Configuration (Per Station)| (1) SPDT, Fused-Wet/Dry
(1) SPDT, Non-Fused-Wet/Dry
Contact| 2 Amp @ 30 VDC Resistive