Installation - GE MDS Setup Manual

Figure 3. Application Example
2.0

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 positioned so that all interface cabling will
reach the required connectors.
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 air-
flow around the rear heat sink.
2. Connect Antenna Feedlines. All coaxial antenna connec-
tions are made to the Type-N connectors on the rear of the
unit. The number of connections depends on options ordered,
including duplexer options, as follows: Separate TX and RX;
Combined TX/RX; RX Out, RX In; and TX.
Figure 4. Internal Duplexer, Triple N connectors
2 MDS SD Master Station
Figure 5. Internal Duplexer (or internal T/R switch),
Single N connectors
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
connections for most sites include:
• Serial Data—Attach data equipment to the front panel
COM1 and/or COM2 ports. The unit is hardwired as a DCE
device, thus 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 connec-
tions 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 modules 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 connector with screw-terminals. Strip the wire leads to
6mm (1/4 inch) and insert them into the wire ports provided.
Be sure to observe the polarity shown below. Tighten the bind-
ing screws securely and insert the connector into the module.
Current Rating
120W Max.
05-6398A01, Rev. A