PA470-D
5/3/05 NK/AH
PA470-D INSTALLATION
1/4
PA470-D TEST BOX INSTALLATION & USE GUIDE
The PA470-D is a troubleshooting tool that allows you to check the command signal input, the analog
monitor output, and power supply of your standard¹ QB3 (and other units with differential input using
the same connector) using an electrical multimeter without having to gain access to electrical connec-
tions in a cabinet which may be remotely mounted. The PA470-D consists of the test box and 2 pin tip
patch cords (PN H4444). See Figures 1 and 2.
¹ If the QB control valve has any special modifications, consult factory before wiring the box.
Product Description
Product Operation
Set up
1. Remove the cord from the unit to be tested and plug it
into the PA470-D.
2. Plug the cord from the PA470-D into the unit to be
tested.
3
.
Plug one of the H4444 patch cord into the white jacks
(W1 and W2).
4. Plug the other H4444 patch cord into the red jacks (R1
and R2).
See figure 3
Figure 3
Figure 1
Figure 2
