Options And Accessories; Installation - GE MDS Master Station Setup Manual

Options and Accessories

The MDS Master Station may be equipped with optional battery
backup and a variety of duplexer and module options. Contact your
factory representative for information on any of these options.
In addition, GE MDS offers an Accessories Selection Guide listing ad-
ditional items that may be used with many of our products. Contact
your factory representative or visit www.gemds.com for the latest
copy.
Table 1: Module Descriptions - Redundant Station
Module ID
Power Supply 1, Varies
Power Supply 2
Platform Manager 6834
Radio A, 6846
Radio B
6847
Alarm/Relay
6848
Duplexer 6837

INSTALLATION

Refer to the figures which follow for these steps, as required:
1.
Mount the unit. The unit may be rack-mounted (2U high) in a 19-
inch rack cabinet or may be placed on any sturdy tabletop or other
flat surface. The installation site should be free of excessive dust,
and should have adequate ventilation. The chassis should be posi-
tioned so that all interface cabling will reach the required connect-
ors.
When rack mounting, the rack ears can be installed in one of three
positions to allow flexibility in the mounted depth of the chassis.
The unit should be mounted so as to maximize airflow around the
rear heat sink.
2.
Connect Antenna Feed-lines. All coaxial antenna connections
are made to the Type-N connectors on the rear of the unit. Figure
4, Figure 5, and Figure 6 illustrate the antenna options available;
Figure 4: Internal Duplexer, Triple N connectors
2
Function
Input power supply. In a redundant
configuration, both supplies work in
tandem and are independent of which
radio is active.
Provides management and data interface
functions.
Single or redundant SD Master radios
(SDM9, SDM4), or LN radio modules
Redundant—Active radio relay and
alarm/audio interface.
Non-redundant—Alarm and audio
interface.
Internal RF duplexer (if equipped)
Connector 1:
TX/RX Antenna Port
Connector 2:
RX Output to external
notch filter
Connector 3:
RX Input from external
notch filter
MDS Master Station Setup Guide
Figure 5: Internal Duplexer (or internal T/R switch),
Single N connector
Figure 6: External duplexer or dual antennas
(TX and RX ports pass directly through)
3.
Install the Data Interface Cabling. Interface connections are
made to the front of the Platform Manager module. Typical connec-
tions for most sites include:
•
Serial Data—Attach data equipment to the front panel COM1 or
COM2 port. By default, the COM2 port is set for management
and must be configured for data before connecting data equip-
ment. The unit is hardwired as a DCE device; a straight-through
Ethernet cable may be used in most cases (DB9-F to RJ-45
connector, GE MDS part no. 73-2434A12).
•
Ethernet LAN—Attach data equipment to the ETH1 and/or
ETH2 port. The auto-sensing MDIX feature allows either a
straight-through or crossover cable to be used.
Where applicable in the steps that follow, secure all cable connections
with the locking screws provided.
4.
Connect Primary Power—The Master Station is powered using
one or two power supply modules that work in tandem. The mod-
ules may be AC, DC, or a combination of both. The following tables
list each type and key operating parameters.
Table 2: AC Power Supply Module
Module Input Power
6755 100-264 VAC, 50/60 Hz
All DC power supply modules have chassis isolated inputs and a
diode bridge for floating ground, positive ground, or negative
ground installations. These modules include a keyed power con-
nector with screw-terminals. Power supply connections must be
less than 3 meters from the source to the terminals. Strip the wire
leads to 6mm (1/4 inch) and insert them into the wire ports pro-
vided. Be sure to observe the polarity shown below. Tighten the
binding screws securely and insert the connector into the module.
Connector 1:
TX/RX Antenna Port
Knockout covers
installed on unused
ports
Connector 1:
TX Output Port
Connector 2:
RX Input Port
Current Rating
120W Max.
05-6398A01-GB, Rev. A