OPT-SNAP-SCM-W2

SNAP-SCM-W2 SNAP 2-Ch Wiegand Interface Serial Communication Module

The SNAP-SCM-W2 provides two isolated channels of data input from attached devices that comply with the Wiegand
interface format. The module complies with the Security Industry Association Standard Protocol for the 26-bit Wiegand
Reader Interface and is ideal for access control applications using that protocol.
 
Part of the SNAP PAC System, the module mounts on a SNAP PAC rack with a SNAP PAC brain or rack-mounted
controller. Analog, digital, and serial I/O modules can all be on the same rack. Such an I/O unit is also well suited for
PC-based control or for use as intelligent remote I/O for an Allen-Bradley MicroLogix PLC or other RSLogix-based
system, such as ControlLogix or CompactLogix.
 
NOTE: The module is also compatible with legacy SNAP Ethernet, SNAP Simple, and SNAP Ultimate I/O.
 

Channel-to-channel isolation	250 Vrms
Logic supply voltage	5.0 VDC (± 0.15)
Logic supply current	250 mA
Number of ports per module	2
Maximum number of modules per rack*	8
Maximum cable length	See table below
Processor compatibility	SNAP PAC R-series controllers and SNAP PAC EB brains, both standard wired and Wired+Wireless models. Also SNAP-B3000-ENET, SNAP-ENET-RTC, SNAP-ENET-S64, SNAP-UP1-ADS, and SNAP-UP1-M64.
Operating temperature Storage temperature	0 to 70 °C operating -30 to 85 °C storage
Torque, hold-down screws	4 in-lb (0.45 N-m)
Torque, connector screws	5.26 in-lb (0.6 N-m)
Agency Approvals	CE, RoHS, DFARS
Warranty	30 months
* With Opto 22 SNAP power supply and SNAP rack

Rev: 04/13