CRX-POSTX-DIN
DIN Rail PostX IP Reporting Module
Installation Manual | June 2017
21
7.3
Input and Output Control
The PostX Module has 4 inputs and 2 outputs. Each input is independently configured and can send Contact ID
messages, emails, or SMS messages when the input state changes. The outputs can be used to indicate when
communication errors occur.
Zone Inputs
The PostX Module can monitor the state of up to 4 zone inputs using EOL monitored or dry contact devices
such as magnetic switches, PIR motion detectors and temperature thermostats. Devices connected to these
zones can be installed to a maximum distance of 300m (1000ft) from the PostX Module when using 22 AWG
wire. Each zone input may be individually configured for normally opened or normally closed configurations with
or without EOL resistors for tamper and short condition monitoring.
When using a zone with the EOL resistor configuration, the PostX Module generates an alarm condition when
the state of a zone changes between open and closed and generates a tamper alarm condition when a wire
fault (short circuit) or a cut wire (tampered) in the line occurs.
1K
1K
N.C Zone Contact
N.C Tamper
V+
V-
Z4
V-
Z3
Z2
V-
Z1
EOL Resistor Zone Configuration
When using the EOL resistor configuration, the zone input is in the closed state when there is 1k Ohm
resistance between the terminal and ground. If the zone contact opens, leaving 2k Ohm resistance between the
terminal and ground, the zone moves into the open state.