INTRODUCTION
The MDS Master Station serves as a central station in a multiple ad-
dress system (MAS) wireless network. It provides long range, duplex
(or simplex) communication between a control point and associated re-
motes. It is fully redundant for mission-critical applications, and is a
compatible replacement for older MDS x790 Master Stations when or-
dered with the appropriate network interface modules.
The MDS Master Station works with a wide array of wireless equip-
ment, including MDS SD Transceivers, legacy MDS x710 radios, MDS
LN radios, and additional wireless options, depending on the modules
installed in the chassis.
Figure 1: MDS 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 com-
munication modules, up to two power supply units may be installed
and are available to suit a wide range of AC and DC power require-
ments.
Each module is secured to the chassis with knurled fasteners for easy
changes, when required. Figure 2 shows a common configuration of in-
stalled modules.
IMPORTANT: To ensure proper heat-sink engagement, the knurled
fasteners must be tightened with a screw driver to at least 10 inch-
pounds (approximately ¼ turn past hand tight).
Platform Manager
Supply 1 (DC)
Supply 2 (AC)
Figure 2: Front Panel Connectors & Indicators
(Front cover removed)
Master Station modules are factory installed and cabled. Table 1 de-
scribes 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-redun-
dant version of the Alarm/Relay module is installed.
The MDS Master Station supports Ethernet or serial polling depending
on order options. A host computer may be connected to the appropri-
ate port on the chassis (LAN for Ethernet; COM1/2 for serial signaling).
Configuration of the unit is performed through a web interface. This re-
quires a LAN connection to one of the Ethernet ports on the Platform
Manager module. In addition, a command line interface (CLI) is availa-
ble through the mini USB port using the proper USB drivers available
at www.gemds.com.
05-6398A01-GB, Rev. A
Radio A
Radio B
Alarm/Relay
Duplexer
MDS Master Station Setup Guide
MDS Master Station
Typical Application
Figure 3
on the following page shows a common arrangement of the
MDS Master Station as used in a licensed narrowband network. The
system shows both MCR and ECR transceivers in use.
Depending on order options, the MDS Master Station can communi-
cate with remotes employing Ethernet signaling, serial signaling, or a
mix of both.
Figure 3: Licensed Narrowband Application Example
Additional Resources
This Setup Guide covers the essential installation and startup for the
MDS Master Station. Alternate information is available in English, (see
05-6399A01Technical Manual). GE MDS manuals, Setup guides, Firm-
ware, drivers and Application Notes are available free of charge at
www.gemds.com.
GE MDS has produced a series of instructional videos
for configuration and setup of the Orbit products on
YouTube. These are available in English, free of charge
http://tinyurl.com/pey2ull
at:
Setup Guide
1