1.0
INTRODUCTION
05-6398A01, Rev. A
MDS SDA Instruction Sheet
1
MDS SD Master Station
Setup Guide
The MDS SD Master Station serves as a central station in a mul-
tiple address system (MAS) wireless network. It provides long
range, duplex (or simplex) communication between a control point
and associated remotes. It is fully redundant for mission-critical
applications, and is a compatible replacement for older
MDS x790 Master Stations.
The master station works with a wide array of wireless equipment,
including MDS SD Transceivers, legacy MDS x710 radios, and
additional wireless options, depending on the modules installed in
the chassis.
Invisible
place
holder
Figure 1. SD Master Station
All modules are installed on slide-in assemblies, accessible from
the front of the unit. A protective cover on the unit’s face slides off,
allowing access to the modules and all interface connectors. In
addition to communication modules, up to two power supply units
may be installed, and these are available to suit a wide range of AC
and DC power requirements.
Each module is secured to the chassis with knurled fasteners for
easy changes, when required. Figure 2 shows a common configu-
ration of installed modules.
Invisible
place
holder
Duplexer
Alarm/Relay
Radio B
Radio A
Supply 1 (AC)
Supply 2 (DC)
Platform Manager
Figure 2. Front Panel Connectors & Indicators
(Front cover removed)
Master Station modules are factory installed and cabled.
Table
1
describes each module installed in a redundant configuration, from
left to right. For a non-redundant configuration, blank plates are
used in place of the redundant power supply and radio modules,
and a
non
-redundant version of the Alarm/Relay module is
installed.
The master station supports Ethernet or serial polling depending
on order options. A host computer may be connected to the appro-
priate port on the chassis (LAN for Ethernet; COM1/2 for serial sig-
naling).
Configuration of the unit is performed with a PC, using a web inter-
face. The PC connects to the front of the radio’s Platform Manager
module. Configuration options are similar to those of the SD Trans-
ceiver, and the radio supports full SD functionality in transparent
mode. In addition, a command line interface (CLI) is available
through the mini USB port using the proper USB drivers.
Table 1: Module Descriptions—Redundant Station
Module
ID
Function
1.1
Related Documentation
In addition to this setup guide, the
SD Master Station Technical
Manual
(05-6399A01, under development) provides guidance on
system design, advanced configuration, and maintenance. The
Technical Manual should be available to personnel involved in the
design, commissioning and maintenance of the network. Elec-
tronic copies of the latest user documents and support files are
available free of charge at
www.gemds.com
.
1.2
Options and Accessories
The SD Master Station may be equipped with optional battery
backup, 10-watt RF power output (5 watt is standard), and a variety
of duplexer and module options. Contact your factory representa-
tive for information on any of these options.
In addition, GE MDS offers an
Accessories Selection Guide
listing
additional items that may be used with many of our products. Con-
tact your factory representative or visit
www.gemds.com
for the
latest copy.
1.3
Typical Application
Figure
3
on the following page shows a common arrangement of
the master station as used in a multiple address radio network. The
system shows both SD and legacy x710 remote transceivers in
use.
Depending on order options, the master station can communicate
with remotes employing Ethernet signaling, serial signaling, or a
mix of both.
Power Supply 1,
Power Supply 2
Varies
Input power supply. In a redundant
configuration, both supplies work
in tandem and are independent of
which radio is active.
Platform
Manager
6834
Provides management and data
interface functions.
Radio A,
Radio B
6846
(SDM9)
Single or redundant full duplex SD
Master radios.
Alarm/Relay
6847
6848
Redundant—Active radio relay and
alarm/audio interface.
Non-redundant—Alarm and audio
interface.
Duplexer
6837
Internal RF duplexer (if equipped)
