Spectrum 3365WD2, Product Manual, Page: 5 / 8

5
Before powering the short-range modem pair with the A/C
adaptor, check that the jumper clip on the RS232-RS485
converter is in the
Echo-On
position as shown in figure 2.
Figure 2: Top view of Echo On/Off switch
Echo
Off
On
Jumper Clip
Pins
Connecting to the Computer
The 9-pin female connector of the RS232-RS485 converter
connects to the computer data port. This converter is opti-
cally isolated so voltage spikes in the twisted-pair cable
should not damage your computer.
In SpecWare go to
File → Preferences →
Communication → Advanced Options
. Uncheck the
Hardware Flow Control (RTS)
(see fig. 3). This must be
unchecked for the modem to work correctly.
Fig. 3: Hardware Flow Control Option (Specware 9)