TECPak
User’s Manual · Page 17
USB Connector
The USB connector is a standard Type B female connector, and can be plugged
into any USB 1.1 or USB 2.0 port. For more information on using the USB
interface, see the
Computer Interfacing Manual
which is included on the CD
that accompanied this product.
RS232 Connector
The RS232 connection is male DB-9 connector wired in a NULL modem
configuration.
Pin
Description
2
Receive
3
Transmit
5
Ground
1,4,6
Commoned together
7,8
Commoned together
9
No connection
Shell
Earth ground
RS232 Connector (DB-9 Male)
For more information on using the RS232 interface, see the
Computer
Interfacing Manual
which is included on the CD that accompanied this product.
LED Indicators
There are two LEDs: the upper green AC Power LED that is lit whenever the AC
power is turned on; and a lower green or red On/Error LED that will light green
when the unit is on and operating normally, or red when an error has occurred. If
the unit is operating, but has unacknowledged errors, then the On/Error LED will
be primarily green, but briefly flash red approximately once per second to
indicate the unit is operating normally, but previously encountered an error
(errors are automatically cleared by
Arroyo Control
, or can be cleared by
sending an ERR? or ERRSTR? query).
