2
Part Names and Functions
Name
Description
A Status LED
B USB Host Interface (USB)
USB1.1 Host I/F, Connector: USB TYPE-A x 1
Power supply voltage: 5VDC±5%
Output current: 500mA (max.)
The maximum communication distance: 5m
C CF Card Access LED
Lit in green when the CF Card is inserted and the cover
is closed, or when the CF Card is being accessed.
D Power Connector
DC model: Power Socket Connector
AC model: Power Input Terminal Block
E CF Card Cover
-
F Serial Interface (COM1)
Dsub 9-pin plug type. RS232C is supported.
G Serial Interface (COM2)
Dsub 9-pin plug type. RS422/RS485
*1
is supported.
*1 RS485 is compliant with ST-3500 series units with revision code “B” or later.
H Dip Switches
Located inside the CF Card Cover.
Front
Rear
Bottom
(With CF Card Cover open)
AST-3501T (AC model)
AST-3501T (AC model)
A
H
D
C
E
F
G
B
LED
ST Status
Green (lit)
Normal operation (power is ON.) or
OFFLINE operation.
Orange
(blinking)
During software startup.
Red (lit)
When power is turned ON.
Not lit
Power is OFF.
SEE