Instruction Manual

36 Rev. 3

Remote Interface Reference

Serial Communication DIP Switch Settings

of only termination characters. Otherwise, the shared input/output

command buffer of the Model 185/186 may become corrupted.

5.1.3 Serial Communication DIP Switch Settings

The 8 DIP switches located on the rear panel of the Model 185/186 are

used to control various parameters of the RS-232 interface. Switches 6

through 8 control the baud rate of the interface. Switches 3 through 5

control the time interval between data output if the data logger function is

enabled. Switch 2 controls the echo feature and switch 1 enables the data

logger function. Each of these features is fully discussed below.

5.1.3.1 Baud rate control

The Model 185/186 baud rate is controlled by switches 6 through 8 of the

communication DIP switch on the rear panel. The unit is shipped with the

baud rate set at 9600. The switch settings for various baud rates are (on =

1 or the up position):

5.1.3.2 Echo function

The Model 185/186 has an echo feature which is enabled or disabled by

communication DIP switch 2. When the echo function is enabled, the

Model 185/186 will echo the incoming command characters back to the

transmitting device. The echo feature is useful when using an interactive

terminal program on a host computer for communicating with the Model

185/186. The settings are:

DIP switch

Baud rate678

off off off 300

off off on 600

off on off 1200

off on on 2400

on off off 4800

on off on 9600

DIP switch 2 Function

on Echo On

off Echo Off

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