Technical data

Chapter 2 - Installation
Time of Day Connection
The Time of Day port outputs a message once every second. This output
is NOT user configurable.
Table 2-2: J8 Pin Connections
J 8 Connector PIN Connection, Function = Time of Day
(as viewed at the GPS connector)
Pin 1 Not used
Pin 2 TX data
Pin 3 RX data
Pin 4 DTR
Pin 5 Ground
Pin 6 DSR
Pin 7 not used
Pin 8 not used
Pin 9 not used
Use the cable provided with the Alvarion eMGW/MGW System for
connection to the ‘TOD’ port. The port configuration is described in the
Input / Output Message Format section, page 1-7.
Ground Topography
The power supply input is floating.
Voltage inputs should be left floating with reference to ground
Earth ground MUST be connected to the external case with a screw
fitting (refer to Casing Ground Connection, page 2-17).
Power Connection
The appropriate power cable for the 3.4.8 Power Connection unit is
supplied with the system. During manufacture, this cable is fitted with
a Binder connector (4-pin female) matching the ‘POWER’ connection of
the GPS Receiver.
Details of the input voltage and relevant connections are given below:
48Volt nominal (36 to 72V) DC = 4-pin Binder input connector
GPS Timing Receiver Installation and Operation Manual
2-20