GE NX-10 Installation Manual page 79

4-position DIP
B
switch
LED
C
LED
D
Figure 11. NX-508E output expander
DATA
1
COM
2
3 POS
AUX
4
COM
5
TAM
6
OUT 1-8
7
X-10 interface
8
connection point
4-position DIP
9
switch
See Table 10. NX-507E/NX-508E output expander DIP switches.
Flashes during normal operation.
Factory use only.
Connect to the control panel Data terminal. This terminal is the data-signalling terminal to
all the devices on the bus.
Connect to the control panel COMMON terminal. This terminal supplies the common side of
he power to the NX-508E board.
Connect to control panel AUX POWER + terminal. This terminal supplies power to the NX-
508E board.
This terminal can supply up to 100 mA fused separate from the power in the control panel.
Note: Any power drain from this terminal should be included in total current draw from the
NetworX control panel or NX-320-I power supply as applicable.
This allows an isolation of the power between the main control and remote devices. If a
short is created past the AUX terminal, those devices will cease to function, but the other
devices, including the NX-508E, will continue to operate. The NX-508E will report this
problem to the control for display on the keypad as an expander power trouble.
Connect to the tamper terminal through a normally closed contact.
This is an option tamper terminal. To use this feature, connect the normally closed tamper
switch between this terminal and COM. If this feature is not used, a jumper must be
connected between this terminal and common (or put DIP 4 to ON).
Open collector outputs that switch to ground when activated, max. 100 mA.
Note: If device is connected to outputs, it must see the transition from 13V to GND. The
enclosed resistors must be used. Connect the resistor between AUX and the output being
used.
Only one required per system.
Note: X-10 plug is not to be used in an EN certified installation.
See Table 10. NX-507E/NX-508E output expander DIP switches
NX-10 Expander Installation Guide
79