J28 hsm connections for the model 494.74 hsm board – MTS FlexTest Models 200 User Manual
Page 267
Model 494.74 Two-Station HSM Interface Board
MTS FlexTest® Models 40/60/100/200 Controller Hardware
Digital I/O and Transition Boards
267
J28 HSM Connections for the Model 494.74 HSM Board
The control cable for each HSM plugs into a separate J28 connector on the
494.74 HSM board. Each HSM channel has separate 24-volt, low-pressure
and high-pressure outputs that drive the HSM low- and high-pressure
solenoids.
Note
The Model 494.74 HSM board cannot be used directly with 115 V
AC HSMs. Applications that use 115 V AC HSMs require an external
converter box (such as a Model 413.08), which is used in
conjunction with this board.
J28
(D9S)
494.74 HSM Board
7
4
8
6
1
J49 AUX PWR
J3A STA
J3B STA
J28A HSM
J28B HSM
J28A
+24V
J28B
HSM Low
Solenoid
HSM High
Solenoid
High
Low
Reserved
Reserved
Jumper
Required