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2 OVERVIEW
Key
Connector
3
4
6
7
8
9
10
16
Description
The RF Modulator port provides RF output in a
frequency range from 71 to 129 MHz in 50 KHz
steps. The OOB data carried in the RF signal is
transmitted at 2.005 Mbps QPSK and are null filled
between data packets.
A 44 MHz QPSK modulated IF port provides an IF
output which can be used with an external
converter to generate any other desired center
frequency.
The EMR
type and part of the emergency alert system
circuitry. This circuitry enables civil authorities to
deliver emergency warnings to cable subscribers.
The screw terminal labeled GND connects to signal
ground. The screw terminal labeled + connects to
the positive side of an emergency alert remote
control unit.
DB25 RS530 This port operates in either an
asynchronous or synchronous mode and provides
higher transparent MPEG data input output
capabilities at data rates up to 2.005 Mbps.
Enet1 /
Enet2
ENET1 is a 10/100Base-T Ethernet interface
(OAM&P) that receives and transmits data to and
from external sources. This is a standard RJ-45
connector.
DB9 RS-232 communications port used for data
input/output.
Chassis ground.
connectors are of the screw terminal
ALRT
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