ST3000 Series Hardware Manual
2-2
2.1
ST-3200 Series
A: Status LED
This LED indicates the ST’s status, e.g. power
input, firmware RUN status or backlight condition.
B: Power Plug Connector
C: USB Host Interface (USB)
Complies with USB 1.1.
One port for TYPE-A connector.
Power supply voltage DC5V ±5%.
Maximum output current: 500mA
Maximum communication distance: 5m
Interfaces to transfer cable, USB-compatible
printer, and such.
D: Serial Interface (COM1)
RS232C serial interface. D-sub 9-pin plug type
connector.
E: Serial Interface (COM2)
AST-3201A:
RS422/RS485
*1
serial interface. D-sub 9-pin plug
type connector.
AST-3211A:
RS485 (MPI only) serial interface. D-sub 9-pin
socket type connector.
LED
ST Operation
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.
*1
AST-3201A units with revision code “C” or later are compliant with RS485.
Front
Back
A
B
E
Bottom
D
C
SEE