LA Series Linear Servo Amplifier Technical Reference Manual
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8.5 Status indicator/Remote Display Port
Connector J8 can be used to monitor system status via a parallel bus or remote display. The data written
to this port is the same data used to drive the 7-segment display. An “on” segment results in the
corresponding J8 pin to be at +5 volts. The bits are defined as follows
:
J8 Pin
LED segment
1
a
2
b
3
c
4
d
5
e
6
f
7
g
8
dp
9
+5 vdc External (100mA Maximum)
10
Gnd
8.6 Serial Port
J10 is the RS232 communication port. A built in operating system in the DSP allows setting and viewing of
all parameters and switch settings via a dumb terminal interface such as Windows Hyper Terminal. An on
board NVM chip stores the serial parameter settings for recall on next power up of following a reset.
The communication settings are 19.2 Kbaud, 8 data, 1 stop, no parity, no handshake. The pin out for the
cable to connect to a standard PC serial port as a DTE device is as follows.
J10 Pin
DB9-F Pin
1
3 Rxd
2
2 Txd
3
5 Common (Ground)
4
No Connect (Ground only for programming cable)
