Installation guide

RS-422 SINGLE-POSITION JUNCTION BOX (J-BOX) 8000-2573-20, REV. H
INSTALLATION GUIDE 7 of 10
Procedure
1. Turn power switch in J-box to off (0). Power
LED should be off.
2. Route power and data cables through one of
two extra strain relief fittings in bottom of box.
3. Connect low-voltage ac and data wires to
connector TB2 (Figure 8). Color code shown is
for composite cable.
Figure 8. Routing power and data cables
J1
1
RS422 PCB
1234
Data Test
Switch S1
Data Out (Low)
Data Out (Hi)
Data In (Low)
Data In (Hi)
Data Out (+) – ORG
Data Out (–) – GRN
AC – BLK
AC – WHT
Cable Shield
Data In (–) – BRN
Data In (+) – YEL
Power Gnd. – RED
DS1
DS2
TB2 (Dome Connections)
To Dome
From Dome
1
9
AUX IN2 LO
AUX IN2 HI
AUX IN1 LO
AUX IN1 HI
SHIELDS GND
AUX OUT2 LO
AUX OUT 2 HI
AUX OUT1 LO
AUX OUT1 HI
1
2
3
4
5
6
7
8
9
Testing for Data
To test for data into J-Box: Press and hold
switch S1 (Figure 9). Good data is indicated by
DS1 glowing green and its center flashing red.
Figure 9. Test data switch S1
RS422 PCB
Data Test
Switch S1
DS1
DS2
To test for data from Domes: Press and hold
switch S1. DS2 glows green and its center blinks
red to show good data as controller polls each
dome (see chart below).
DS1 LED indications
Constant green,
Blinking red
Comm. line correctly wired.
Constant green,
No red
“Data In –” shorted to ground.
Constant red,
Blinking green
“Data In +/–” wires reversed.
Blinking red,
Green off
“Data In +” shorted to ground.
Both LEDs off “Data In +/–” wires shorted or
open.
DS2 flashes red for each dome that answers
through J-box. It takes up to 1 minute for DS2 to
flash when only one dome is connected to the
J-box.