JOHNSON CONTROLS
169
SECTION 9 – SERVICE AND TROUBLESHOOTING
FORM 150.72-ICOM6
ISSUE DATE: 12/29/2017
9
FIGURE 43 - PRINTER TO MICROBOARD ELECTRICAL CONNECTIONS
LD12723
TB3-3 TXD
TB3-2 CTS
TB3-5 GND
TB3
2 RD
7 SG
5 CTS
Chiller Microboard
Printer
Do not connect shield
at printer end.
Shield (connect shield to Pin 5
of the connector.
Assembly and Wiring
All components should be assembled and wired as
shown in Figure 43. Strip the outside insulation back
several inches and individual wires about 3/8” (9.5
mm) to connect the cable at the Microboard. Do not
connect the shield at the printer-end of the cable.
Obtaining a Printout
A printout is obtained by pressing the PRINT key on
the keypad and then pressing either the OPER DATA
key or HISTORY key.