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