OPTO 22 – SNAP-SCM-W2 _ SNAP 2-Ch Wiegand Interface Serial Communication Module
OPTO 22 – SNAP-SCM-W2 _ SNAP 2-Ch Wiegand Interface Serial Communication Module
Quick Specs:
- 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 system, 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.
Build your system in the SNAP I/O Configurator.
Specifications:
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Channel-to-channel isolation |
250 Vrms |
|
Logic supply voltage |
5.0 VDC (± 0.15) |
|
Logic supply current |
250 mA |
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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 |
-20 to 70 °C operating |
|
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 |






