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MDS

 

SDM9

Quick

 

Start

 

Guide

 

(x790

 

Mode)

 

2. 

Install the antenna and feedline. 

The antenna 

used with the radio must be designed to operate in 
the radio’s frequency band, and be mounted in a 
location providing a clear path to the associated  
station(s). At Remote sites, aim directional antennas 
toward the Master Station. Low loss coaxial feedline 
should be used and it should be kept as short as 
possible. 
 
3. 

Connect the data equipment. 

Connection may be 

made to the COM port using Serial protocols (RS-
232/RS-485).  RJ45 to DB9/DB25 adapters may be 
required depending on physical data port connector 
type used on the data telemetry device to be attached 
as shown in Figure 3. 
 
4. 

Connect primary power to the Orbit Chassis. 

Input power must within the ranges specified for the 
power supply module installed in the Orbit chassis: 
12VDC, 24VDC, 48VDC, 125VDC, or 90-264VAC.  
These supplies all convert incoming power to +24V 
for SDM9 Module operation. 
 

5. Set the radio’s configuration. 

Connect a PC to 

the radio’s COM1 and COM2 ports as shown in 

Figure 4

. A straight-thru cable may be used for this 

connection with an RJ45 to DB9 adapter. 

NOTE: 

Consult your System Administrator if you are unsure 
of the settings required for your network. 

 

Figure 4. Setup for PC Configuration 

 
2.1.1 Software Configuration 

There are two methods for communicating with the 
radio for configuration and management: 

Serial 

(COM1, COM2 RJ45 connector) and 

Telnet 

(ETHERNET RJ-45 connector). Both present identical 
functionality and use the same commands, but the 
method to configure access is different for each.  
 

NOTE: Transmitter and Receiver configuration are 
handled through separate DSP devices, thus two 
serial ports or two Telnet sessions will be required to 
handle configuration of these two functions.

 

 
The focus here is on 

Serial 

access, but Telnet may be 

used by following these additional points, which 
replace Steps 1 and 2 below: 

• For Telnet, connect to the radio with a PC 
that is on the same IP network as the 

transceiver. Launch a Telnet program, and 
connect to the radio using its programmed IP 
address for the Transmitter and Receiver. 
• The default IP address of the Transmitter 
configuration is 192.168.1.1.  The default IP 
address of the Receiver configuration is 
192.168.1.2. If you do not know the IP 
address of the radio, use the serial 
configuration steps below to view the 
address with the 

IPCONFIG 

command.  

 
1. With a PC connected to the COM1 serial port, 
launch a terminal program, such as HyperTerminal 
(included withmost pre-Windows7

®

-based PCs) and 

set the following parameters: 

8 bits, no parity, one 

stop bit (8N1), flow control disabled, VT100 
emulation

. The COM port automatically finds the 

connected baud rate (within 1200–115200 bps). 
 
2. Press the ESCAPE key followed by a series of 
ENTER keypresses (at 1/2 second intervals) until the 

prompt appears. The radio is now ready to accept 

commands. 
 
3. Set/verify the 

RX 

(receive) and 

TX 

(transmit) 

frequencies. To set the receive frequency, enter 

RX 

followed by the correct frequency in MHz 
(

xxx.xxxxx

). Press ENTER . To set the transmit 

frequency, enter 

TX 

followed by the correct frequency 

in MHz (

xxx.xxxxx

). Press ENTER. 

 
4. The factory default modem settings support 9600 
bps transmission in a 12.5 kHz bandwidth channel. 
Many other options are available. The current setting 
may be viewed using the 

MODEM 

command. Use 

MODEM [xxxx] 

if changes are required. 

 
When finished with the steps above, review the other 
configuration options to determine if other settings are 
required for your system. 

Table 3 

lists key software 

commands for the radio. 
 

2.2 Initial Checkout 

In-service operation is completely automatic. The only 
operator actions required are to apply DC power and 
observe the LEDS for proper indications. 

Table 1 on 

the following page 

summarizes the radio’s LED 

functions. 
 

 

 

Summary of Contents for MDS SDM9

Page 1: ...ly installed antenna system Correct interface connections between the transceiver and the data device Figure 2 shows a chassis with card cage and backplane that this module would be typically installed in The backplane provides the 24V power connection to this unit and provides the customer data interfaces through the card edge connector on the rear of the SDM9 Figure 2 Typical Orbit Master Statio...

Page 2: ...al access but Telnet may be used by following these additional points which replace Steps 1 and 2 below For Telnet connect to the radio with a PC that is on the same IP network as the transceiver Launch a Telnet program and connect to the radio using its programmed IP address for the Transmitter and Receiver The default IP address of the Transmitter configuration is 192 168 1 1 The default IP addr...

Page 3: ... dBm is stronger than 80 dBm All radios in the network must meet the following requirements for proper operation Check these items first when troubleshooting a communication problem Adequate and stable primary power Secure cable connections RF data and power A clear transmission path between Master and each Remote An efficient and properly aligned antenna system providing adequate received signal ...

Page 4: ... Commands Command Function ALARM Read current operating condition of the radio BAUD xxxxx abc Set display the data rate and control bits BUFF ON OFF Enables or disables the internal radio data buffer CTS 0 255 Set display the Clear to Send delay in seconds DEV Display modem control deviation DEVICE DCE CTS KEY Set display device mode DKEY Dekey the radio transmitter OFF This is generally used as a...

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