Cisco Headend System Release 2.5 Installation Guide
40
4023372 Rev B
Overview
The FCC mandates that any high-definition signal that is available over-the-air to a
subscriber must be passed through to the subscriber without being encrypted.
Typically, system operators use QAMs to provide this passthrough signal; however,
system operators need the option of using MQAMs to provide the passthrough
signal.
The procedure in this appendix provides the information you need to set up an
The procedure in this appendix provides the information you need to set up an
MQAM to provide a passthrough signal to subscribers.
Note: You can only provision ASI port 1 and RF output port 1 on an MQAM for
Note: You can only provision ASI port 1 and RF output port 1 on an MQAM for
passthrough functionality. When using passthrough functionality on an MQAM,
you cannot use the other three ports on the MQAM.
What You Need
This procedure requires that you first provide the following:
An upgrade to the MQAM to version 2.6.18. See Upgrading the Software (on
page 9) for more information.
A PC or laptop to connect to the serial port of the MQAM with a terminal
emulation software package using the following modem connection settings:
-
9600 baud
-
1 stop bit
-
No parity
-
8 data bits
-
No flow control
The hexadecimal number of any program ID (PID) that you do not want to
automatically pass through the MQAM. See Optional Commands for the
Passthrough MQAM (on page 42) for more information.