McQuay MicroTech Unit Controller Installation And Maintenance Data page 34

Figure 26. Typical Communications Interconnections.
OPTIONAL 4-20mAdc EMS
SIGNAL FOR RESET OF
CHILLED WATER
OPTIONAL 4-20mAdc EMS
SIGNAL FOR DEMAND ".'
MICROTECH UNIT
CONTROLLER #l
DISPLAY ENGINN 01
OPTIONAL FACTORY
INSTALLED MODEM
TWISTED PAIR CABLE
Page 34 I IM 403
LIMITING
CONTROL ENGINN 01
PHONE
PC DOS/MS DOS
COMPATIBLE COMPUTER
WITH McQUAY SOFTWARE
MICROTECH SYSTEM
CONTROLLER (LLLB PANEL)
ADDRESS 00
PORT B
ADDRESS:
DISPLAY ENGINN 02
CONTROL ENGINN 01
NOTE: Maximum distance for
RS-232C is 100 feet and 5000
feet for RS-4851422.
RS-232C 1200 BAUD
PC DOS/MS DOS
COMPATIBLE COMPUTER
WITH McQUAY SOFTWARE
MICROTECH UNIT
CONTROLLER #2