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05-6398A01, Rev. A

MDS SD Master Station

3

Invisible 

place 

holder

Table 3: DC Power Supply Modules

Module

Input Power

Current Rating

Figure 7. DC Power Connector

5.

Connect a PC for Configuration (LAN or USB port).

 This 

prepares the master station for programming of desired oper-
ating parameters. Configuration is further described in Section 

3.0

NOTE:

If serial-based cabling is used for configuration, an 
adapter may be required at the PC, as many PCs do not 
offer a serial port. In such cases, a USB-to-Serial adapter 
(with appropriate driver software) may be used. These 
adapters are available from a number of manufacturers.

6. For redundant units, the Alarm/Relay module includes a man-

ual override toggle switch, which can be set into one of three 
positions to associate it with a particular radio. The toggle 
switch is locking, and must be pulled out to change positions. 
Switch functions are as follows:  
 
Up—Radio A; 

 

Down— Radio B; 

 

Center—Automatic.

When the switch is set to Automatic, the active radio is deter-
mined by radio module presence and alarm status. If only one 
radio module is installed (A or B) it is recommended that the 
switch be set to A or B, as appropriate.

7.

Radio, Alarm/Relay, and Duplexer Connections

—The 

Alarm/Relay module provides two alarm outputs, one for 

major and one for minor alarms. This module also provides 
TX/RX audio, PTT (TX keying), and analog RSSI connections. 
See Section 

6.0

 for pinout connections.  

 

All other required connections on the front of the unit are 

cabled at the factory per ordered options. 

3.0

SOFTWARE CONFIGURATION

In the following steps, you will log into the unit’s configuration 
system and set the basic operating parameters for the unit.

NOTE:

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

3.1

Configuration via SD Manager

The configuration PC may be connected to the unit by WiFi (future 
feature), USB, or Ethernet. The following steps describe a config-
uration using the SD Manager application running on the unit. SD 
Manager is accessible through ETH1 or ETH2 using a web 
browser.

Minimum browser requirements: IE10 or later, Chrome, Firefox, or 
Safari.

1. Open a web browser and navigate to the IP address of the 

unit (default Ethernet IP address is 

192.168.1.1

). The initial 

sign-in prompt appears.

2. Enter the username and password (

admin

 is the default entry 

for both fields). Click 

Sign In

. Upon successful login, the 

Device Overview page appears.

3. For initial configuration, the 

Initial Setup Wizard

 will appear 

and provide guidance in typical Master Station setup. This is 
disabled after the initial setup but may be re-run at any time by 
accessing the 

Wizards

 link on the left side of the screen, and 

clicking 

Initial Setup

.

Key items that should be reviewed and/or set for the radio are:

• Create one-time programmable passwords for unit recovery
• Change login passwords (to maintain security)
• Evaluate default factory configuration and lock the unit down 

to the required security level

4. When the Initial Setup wizard completes, select the 

SD Con-

figuration Wizard

, which steps you through initial SD Radio 

Module configuration. Key items that should be reviewed 
and/or set include:

• Frequency plan
• Modem selection
• Keying mode
• Serial data interface configuration
• Encryption settings

5. For additional SD radio configuration and status options, navi-

gate to 

SDMS Configuration 

using the following selections:

a.

Select 

Interfaces

 on the left hand menu...

b.

Click on the 

sdms

 interface name in the Interfaces Con-

figuration table...

6843

+/- 12-30 Vdc

10 A Max.

6844

+/- 36-75 Vdc

3.5 A Max.

6845

+/- 75-140 Vdc

2 A Max.

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