User's Manual

TD 93021US Rev A
10 FEB 2014 / Ver A 75
Installation Guide
teleCARE IP
6.5.2 Light Switching Relay Maximum Load and Surge Damping Diode
The teleCARE switch module NIBM2 with a socket and bed light control include 2 light switching
circuits. Each circuit is suitable for switching a bi-stable 24Vdc relay. The maximum switching current
for each relay must not exceed 0.3A at maximum 30Vdc.
Figure 92. Light switching relay with surge damping diode
WARNING:
• The equipment that is connected to this interface is not considered to be part pf the system
configuration unless the equipment complies with ANSI/UL 2560 standard for Emergency Call
Systems for Assisted Living and Independent Living Facilities.
• Do not connect the bed light circuitry directly to the L1 and L2 switch contacts on the NIBM2.
• The Light Switching Power Supply and Relay must be UL listed or recognized components.
• The maximum switching current for the L1 and L2 contacts on the L1 and L2 contacts on the
NIBM2 must not exceed 0.3A at 30Vdc.
• A diode (1N4004 or equivalent) must be connected across the coil of the bed light switching relay
to prevent surges caused by the relay coil.
6.5.3 External Call Contact with Call Lamp Output
The external call connection allows an external normally open third-party contact to activate a
teleCARE call in parallel to the red button of the bedside module.
The 4-pole connector provides SWITCH and GND terminals for connection to a normally open contact
of an external switching device. These terminals provide 5.5Vdc at 0.6mA, for monitoring the external
device contact.
The 4-pole connector also provides a +5.5V output and an open collector driver on the Lamp terminal.
Together, the +5.5V and Lamp terminals provide power and switching for an external LED lamp. The
external LED lamp will be switched on when the contact on the external switching device connected
to the SWITCH and GND terminals closes.