Lenel LNL-3300-M5, Installation Manual

Page: 61 / 184

M Series Installation Guide
revision 7 —
61
16 Alarm Input Wiring
Typically, these inputs are used to monitor door position, request to exit, or alarm contacts. Input circuits can
be configured as unsupervised or supervised. When unsupervised, reporting consists of only the open or
closed states.
When an input circuit is configured for supervision, the LNL-1100-20DI also monitors the following
abnormal circuit conditions:
• open circuit,
• shorted circuit,
• grounding of either side of the circuit*
• the introduction of a foreign voltage*
* Grounded and foreign voltage states are not UL 294 required and therefore not verified by UL.
A supervised input circuit requires adding two resistors to the circuit to facilitate proper reporting. The
standard supervised circuit requires 1K Ohm, 1% resistors and should be located as close to the sensor as
possible. Custom end of line (EOL) resistances may be configured via the host software.
The input circuit wiring configurations shown are supported, but may not be typical.