port during normal operations. By doing so, audio playback can be interrupted for a short time. For more
detailed information, see Section 2.12.
HDMI In and Out connectors
The Dolby CP950/CP950A includes one HDMI input port and one HDMI output port for use with alternative
content. These ports support HDMI 2.0 and high-bandwidth digital content protection (HDCP) 2.2. In cases
where older playback equipment may not work well with HDMI 2.0, there is a setting in the web client macro
editor that allows you to select HDMI 1.4. For more information, see Section 3.2. The Dolby CP950/CP950A
pass the selected HDMI input video data to the HDMI output connector. Note that if a device (if any) is
connected to the HDMI output connector, it will limit the options available to the source device; for example,
if a projector connected to the HDMI output supports only HDMI 1.0, you cannot play Doby TrueHD audio and
are limited to stereo output.
Command Network port
This Gigabit Ethernet port connects the Dolby CP950/CP950A to a Dolby Digital Cinema auditorium network.
You use this port to access the web client and for automation commands from digital cinema playback
systems or other automation devices. The default port that is used for ASCII commands through the Ethernet
Telenet protocol is 61408. IPV6 is not supported on this interface.
RS-232 serial port
You can use this 9‐pin port for serial control using ASCII string commands. It uses a D‐subminiature DB9 data
terminal equipment (DTE) male connector. Use a crossover cable to communicate with another DTE device,
such as a PC.
The equipment connected to this port should have its serial port set to 9,600 baud, no parity, one stop bit.
For more information and supported commands, see Section 10.2.
Related information
Pinouts for Dolby CP950and CP950A connectors on page 138
Performing USB functions on page 38
Configuring preferences on page 68
Configuring a room on page 65
Configuring macros on page 47
ASCII serial commands on page 156
1.3.2 CP950A CAT1710 media block board
The CAT1710 is a media block board in a CP950A. This board expands the capabilities of a CP950 from 16
channels to 64 channels and can decrypt and render Dolby Atmos content. Use of a CAT1710 requires a
CAT1741 power supply and the loading of an enablement (license) to unlock Dolby Atmos playback. The
board uses two fans for cooling and includes an advanced battery circuit to maintain its secure identity when
powered o. One of the batteries on the card is rechargeable and can operate while on the shelf for
approximately 24 months. When placed in a CP950A, you can recharge the battery for over 72 hours of
continuous power. The second battery is nonrechargeable and can maintain the secure identity for over 10
years. This battery takes over when the rechargeable cell is depleted. We recommend recharging any spare
CAT1710 battery that is on the shelf every 18 months to provide for the longest lifespan possible. The
batteries are soldered in and cannot be replaced in the field. The CAT1710 media block board contains a
Dolby Atmos Input Ethernet port. This port is used with some digital cinema playback installations to
transport Dolby Atmos content from the playback system to the audio processor. Other playback
installations do not use this port and instead transfer Dolby Atmos content over the command/auditorium
network.
This board contains three LED indicators (POWER, ACTIVITY, and STATUS).
These LEDs illuminate to indicate their current state as follows:
Introduction to the Dolby Cinema Processor CP950 and Dolby Atmos Cinema Processor CP950A
Dolby Cinema Processor CP950 and Dolby Atmos Cinema Processor CP950A Manual 22
Issue 9 Part Number 8800298 19 January 2022
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