GE NX-320E Installation Manual page 9

Connections
Connect the terminals described in Table 2. The total wire run from the control panel to all devices, including
the NX-320E is 2500 feet.
Table 2. Terminal descriptions
Terminal Description
Control panel terminals
DATA Connect to the control panel's Data terminal. This terminal is the incoming data-signaling terminal to
the NX-320E module.
COM Connect to the control panel's Common terminal. This terminal supplies the common side of the power
to the NX-320E module.
POS Connect to the control panel's Aux power + terminal. This terminal supplies power to the NX-320E
module.
Accessory terminals
DATA Connect the outgoing data-signaling terminal for bus extension.
COM Common terminal for any device powered from the NX-320E.
Out A and B Connect programmable output current limited to 1.5 A.
a
COM a Connect any device powered from the NX-320E.
OUT C a Connect programmable output current limited to 1.5 A.
BELL+ and BELL- Connect bell as in Figure 3 on page 6. The current is limited to 2.5 A.
TAM Connect an optional Tamper terminal. To use this feature, connect the normally closed tamper switch
between this terminal and COM. If DIP switch 4 is off, this feature is not used.
EARTH Connect earth ground.
AC Connect AC input. Connect to a 16.5 V 50 VA Class II UL approved transformer.
a. The total current on the NX-320E should not exceed 2.0 A.
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