User's Manual

6 MDS SD9 Startup Guide 05-xxxxA01, Rev. 01
vided with each unit (see Figure 5). Strip the wire leads to 6 mm
(1/4 inch) and insert in the wire ports. Be sure to observe proper
polarity as shown in the Figure 5.
Invisible place holder
Figure 5. DC Power Connector
The transceiver is designed for use with nega-
tive-ground systems only. The power supply should be
equipped with overload protection (NEC Class 2 rating),
to protect against a short circuit between its output ter-
minals and the radio’s power connector.
5. Set the radio’s configuration. The transceiver is designed for
quick installation with a minimum of software configuration
required.
a. Connect a PC to the transceiver’s DB-9 COM1
connector as
shown in Figure 6. A straight-through cable may be used in
most applications. If desired, a cable may be built using the
information shown on Page 12 of this guide.
b. Launch a terminal communications program, such as Hyper-
Terminal (included with most Windows
TM
systems). Press the
key a few times (at half-second intervals) to receive
the ready “>” prompt on the screen.
NOTE:
To prevent unintended keying of the transmitter during
management activities, set
PTTSIG
to
OFF
, or do not
connect to Pin 6 of the
COM1
port.
Lead
Screws (2)
Binding
Wire Ports (2)
(Polarity: Left +, Right –)
Retaining
Screws (2)
CAUTION
POSSIBLE
EQUIPMENT
DAMAGE
ENTER