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2.3
BAUD RATE
The communication baud rate is set using switch positions 3 through 8 on the 8-position
DIP switch located on the rear panel of the HDCD8TP unit. The baud rate can be set to
2400, 4800, 9600, and 19200. Refer to Figure 8.
2.4
FRONT PANEL LEDs
After the unit is installed, there are three LEDs on the front panel of the unit that indicate
power on/off and communication to and from other pieces of equipment in the system.
2.4.1 Power
The Power indicator lights when power is connected to the HDCD8TP. However, it
does not necessarily mean that the power is sufficient to power the HDCD8TP.
2.4.2 Data Out
Data Out flashes when data that was received at an O/P connector is outputted at the
RS485 Input and PC CONTROL connectors (i.e., data is being sent to the telemetry
transmitter.)
2.4.3 Data In
Data In flashes when data that was received at the RS485 Input or PC Control connector
is outputted at the eight O/P connectors (i.e., data is being sent to the telemetry
receiver.)
Rev. B
CAUTION: The baud rate must be set the same for all
equipment connected to the communication ports.
Refer to figure 8 for baud rate switch settings.
2400 Baud
3
8 ON
9600 Baud
3
8 ON
Figure 8. Baud Rate Settings
8
4800 Baud
3
8 ON
19200 Baud
3
8 ON
HAMU000876
12/29/04
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