MKS 1249A - Instrument Components; Interface Connector; Valve Connector; Figure 6: Instrument Components

Instrument Components Cha
p
ter Three: Overview
30
Instrument Components
The instrument components are shown in Figure 6.
Valve
Connector
Interface
Connector
Bias Adjust
Potentiometer
Valve Position
Indicator LED
TOP
PANEL
FRONT
PANEL
1249A
Serial #:
Model #:
0123456789
MKS Instruments, Inc. Made in the USA
Figure 6: Instrument Components
Interface Connector
The 15-pin Type “D” male Interface connector (J1), located on the front of the unit, provides
access to the power and signal input pins. Refer to Table 6, page 27, for the Interface connector
pinout.
Valve Connector
The 9-pin Type “D” female Valve connector (J2) connector, located on the back of the unit,
allows you connect the 1249 unit to the 148 or 248 solenoid valves and provides access to the
output signals. Refer to Table 7, page 28, for the Valve connector pinout.