UNDERWRITERS LABORATORIES COMPLIANCE VERIFICATION SHEET
The following model number is listed under Underwriters Laboratories® (UL) 1076 for Proprietary
Burglar Alarm Units and Systems and UL 294 for Access Control Systems Units and Underwriters
Laboratories of Canada ULC/ORD-C1076-86.
S321-IP
When installed at the site the following requirements must be met to comply with these standards.
1. The S321-IP shall be mounted in subassembly S300-DIN-L or S300-DIN-S.
2. The tamper switch must be enabled at all times.
3. Transient protection devices that are installed must not be removed or defeated.
4. Do not connect equipment to an AC power source that is controlled by a switch.
5. The sole use of a class 2 transformer to power the S321-IP would not provide battery
standby power.
6. The RS485 reader interfaces were not investigated by Underwriters Laboratories.
7. For a UL 294 Listed system the following Listed readers may be used.
8. Model S321-IP must use a Class 2 direct plug-in transformer rated 120 VAC input and
24 VAC, 50 VA output from one of the following manufacturers:
Basler, part number BE116450CAA or BE116450AAA
Potter Electric Signal Co. (Amseco), model XR-2450LED
Revere Industries, model RT-2450SL/M
9. UL 294 Performance Levels
Destructive Attack
Level I
Endurance
Level IV
Line Security
Level II
Standby Power
Level I
Manufacturer
Models
HID Corp.
30387, 31503, 31815, 31880, 32005, 32788, 32985
5355, 5365, 5395, 5405, 5455, 6005
All models may be followed by additional suffixes
Mercury Security Corp.
MR-5
