Connections; Internal Connections - Hitachi EC702HP Operation Manual

Section 3 - Installation (ATSC EC702HP Transmitter)

3.8.2 Connections

3.8.2.1 Internal Connections

The following connections must be made:
- RF cables
- AC power cables and grounding
- Digital exciter cables
- Rejection loads drawer cables
- Ethernet* Switch
- GPS antenna cables (optional)
- GPRS module cables (optional)
- Transport Stream cables (ASI)

NOTE: Before making connections, remove all "Yellow cable ties"
fixed cables.
A- RF cables
These cables are used in the connections between the digital exciters and coaxial relay, coaxial
relay and splitter 1:2, combiner and rejection loads drawer.

Make the connection between the output of the exciter A identified as RF OUTPUT and
INPUT A of the relay coaxial.

Make the connection between the output of the exciter B identified as RF OUTPUT and
INPUT B of the relay coaxial.
RF OUT Connections
*Ethernet is a trademark of the Xerox Corporation.
Manual Rev. 0.0 - April 2016
RF OUTPUT
EXCITER A
RF OUTPUT
EXCITER B
Figure 3-45
Digital exciters
EXC B
Figure 3-46
Coaxial Relay connections
INPUTS
COAXIAL
RELAY
EXC A
OUTPUT
COAXIAL
RELAY
3-35