Receiving Oob Data Inputs - Motorola OM 1000 Installation And Operation Manual

Receiving OOB Data Inputs

The OM 1000 can receive OOB data through multiple input ports. All data ports are located on
the back panel and each has a unique numeric identifier. Table 2-1 describes the OM 1000 input
ports:
Table 2-1
OM 1000 input ports
Port Type Description
RS-232 DB9 A standard RS-232 serial data port (asynchronous only) receives EPG information,
code download, and other OOB data types. In some systems, an RS-232 port is
serial data
configured to receive cable-terminal control-stream information instead of, or in
conjunction with, the Ethernet port.
Ethernet The standard Ethernet port is the primary input to the OM 1000. Because it is an
Ethernet connection, it supports communication with multiple devices over the same
physical port.
Generator port The MPEG message generator is a virtual input-only port that supplies MPEG
messages at periodic intervals to the output ports configured by the datapipe. The
control interface sets the insertion interval, availability status, and the message data.
The optional RS-232 and/or RS-530 serial data ports are expansion ports. These
RS-232 or RS-530
ports are used in the same way as the RS-232 serial port and can be configured for
DB25 serial data
input or output operation. Refer to the operate.txt file in Appendix C, "Initialization
Information" for configuration information.
In general, OOB data input to the OM 1000 must be in MPEG-2 transport packets. Data sent to
configure, control, and boot the OM 1000 need not conform to MPEG-2 format.
Overview
OM 1000 Installation and Operation Manual
2-3