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Input/Output and Power Connections
All input, output, and power connections to and from the OM 1000 are made at the rear panel,
which is illustrated in Figure 2-7:
Figure 2-7
Rear-panel
USE ONLY WITH
250V FUSES
DISCONNECT POWER
BEFORE REPLACING FUSES
A
Table 2-4
OM 1000 input/output and power connections
Key
Connector
A
USE ONLY WITH
250V FUSES
DISCONNECT POWER
BEFORE REPLACING FUSES
RF
B
OUT
C
D
IF
OUT
E
F
G
H
I
C
E
EMR ALRT
PORT 5
SYNC
IN
RF
IF
OUT
OUT
B
D
F
Description
The ac power input accepts any input from 100 through 240 Vac at 50
through 60 Hz. The fuse is a 2 amp slow blow, 250 Vac.
The
provides 71 through 129 MHz RF output for distribution. This
RF OUT
is an F-type connector.
The sync in BNC connector provides for symbol rate sync input from an
external source. The required input frequency is 4.096 MHz ± 0.01%. The
input signal level is 6 through 8 V p-p.
T
provides a 44 MHz IF output signal that can be used with an
HE IF OUT
external upconverter to generate any other desired center frequency for
RF distribution.
The
connectors are of the binding post type and part of the
EMR ALRT
emergency alert system circuitry. This circuitry enables civil authorities to
deliver emergency warnings to cable subscribers. The black post
connects to ground. The red post connects to an emergency alert remote
control unit.
is an optional DB25 male (DTE) connector. This RS-530 or RS-232
5
PORT
port that connects to an optional module within the unit, permitting
interface of the OM 1000 with additional signals.
is an optional DB25 male (DTE) connector. This RS-530 or RS-232
4
PORT
port that connects to an optional module within the unit permitting
interface of the OM 1000 with additional signals.
is an RJ-45 connector for Ethernet 10Base-T IEEE 802.3. This
3
PORT
Ethernet port is for input/output data communications. Receipt or
transmission of data is indicated by blinking LEDs.
is a DB9-pin RS-232 communications port used for data
2
PORT
input/output.
Overview
PORT 4
PORT 3
PORT 2
G
H
I
OM 1000 Installation and Operation Manual
2-9
PORT 1
EXP
J
K
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