IP Surveillance Monitoring Module TCW122B-WD TCW122B-WD is ip Observation Monitoring Module specifically designed for a faulty monitor system. Demand or icmp echoing or receiving. This can overload a monitoring device or a network switch. These two relays have usually open and usually closed contacts. For each parameter of monitoring - temperature, humidity, analog voltage and digital input status, snmp trap can be sent under certain conditions. Due to .860