3 ELECTRICAL CONNECTIONS
This section gives an overview of the external connections that are made to the
SDB680 Base Station. It also provides details of the pin-outs for these connections.
3.1. GENERAL
All cabling should be installed so that the equipment can be accessed for servicing
purposes without straining the cables or connectors used.
Where equipment is rack mounted, cables must be run so that the unit can be fully
withdrawn on its runners without straining, catching or pinching any of the cables.
Cables should be dressed into cable trays etc where available and run so as to reduce
likelihood of damage from vermin or adverse environments.
Multi-strand wires must be used wherever the wire will be flexed by accessing the
equipment.
3.2. REAR PANEL CONNECTORS
The rear panel of the SDM680 DMR base station showing all the external connections
is shown below in Figure 1. The functions of each connector on the rear panel are
detailed in Table 1.
Figure 1: Layout of Rear Panel.
Connector # Conn Type Function Description
DC IN Power I/P 14.0 V DC power input
S2 RS232 Serial Port
S1 D Type Facilities
P5 RJ45 Ethernet 10/100 base-T RJ45 Ethernet connector
P4 USB Type B Peripheral USB peripheral interface
P3 USB Type A Host USB interface
Tx N Type Tx O/P RF Power output from the Tx
Rx 1 BNC Rx I/P Rx input for full duplex operation
Table 1: Rear Panel Connections.
Doc Number: TNM-I-E-0046 ISSUE 1.2 Page 29
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