Connectivity – HHB comm CDR-882 User Manual
Page 12
Connectivity
CDR-882 User Manual Version 1.0
Unbalanced L & R analogue outputs. These carry the
same audio signal as the main outputs (1) above, but in
unbalanced form on phono connectors (RCA jacks) at a
nominal level of -10dBu. Output level is calibrated internally
to be +8dBu from a maximum (digital clip) PCM signal level
of 0dBFS. Output impedance is 47Ω.
AES/EBU out. This provides a two-channel AES/EBU digital
output conforming to AES3-2003. The connector is an
XLR3M, output impedance 110Ω.
S/PDIF Coaxial digital output. A 2-channel “semi-pro”
digital output conforming to the IEC60958-4 is available at
this connector. Transmission of CD PQ codes and CD Text
data are enabled in the S/PDIF data stream; the signal
is otherwise the same as that available at the AES/EBU
connector (8).
Note that the channel status bits denoting whether the
digital outputs are “Pro” or “Consumer” may be set via the
menu system (Record > Digital Output Format), and that
this setting applies to both the AES/EBU and S/PDIF digital
outputs.
Also note that the S/PDIF output is used in Multi-Machine
modes to pass audio, clock and CD Text data between units.
S/PDIF Optical digital output. Standard TOSlink connector
carrying the same signal as (9) above, in optical form. Use a
standard optical TOSlink cable of not more than 3m. length.
RS Link Input connector. The CDR-882 can be fully
controlled remotely via RS232 serial commands. Pinout,
port parameters and an abridged command set can be
found at page 13. This port permits one or more (see
(12) below) CDR-882s to be controlled from a dedicated
computer with appropriate software, or by a proprietary
external control system (Crestron, AMX, etc.). A “crossed”
cable (i.e., one with transmit and receive pins cross-
connected) should be used when controlling the CDR-882
from an external control system. A D9M connector is used.
RS Link Output connector. This allows control
information to be passed from Master to Slave units in
Multi-Machine mode. It also allows multiple CDR-882s to be
controlled from a single RS232 controller.
The link connector is a D9F. The pinout is the same as the
RS232 input, except that the Data transmit and receive
pins (2 & 3) are reversed. Thus when “daisy-chaining”
CDR-882s, “straight” cables must be used, in which all
connections between machines are “pin-to-pin”. Note that
in multi-machine modes, the “master” CDR-882 generates
control data for the connected “slave” units.
Note that the RS232 link connector only passes control
data, not audio. In multi-machine modes, the audio signals
need to be distributed to multiple CDR-882s separately
using S/PDIF interconnections. See page 42 for full details
of Multi-Machine operation.
Parallel remote control connector. The CDR-882’s basic
transport commands can also be implemented by volt-free
contact closure at the pins of this connector (a D9F). Five
of the pins are designated as inputs, three as outputs
(tallies). The functions controlled by each of the inputs are
user-definable via the menu system. The source of the tally
outputs is similarly definable. Full information, including
pinout, is available at page 51. Assignment of inputs and
outputs is performed via the menu system; see page 36 for
full details.
Word Clock input. An input for an external 44.1kHz digital
audio word clock is provided on a BNC socket. The input
impedance is either 75Ω or high-impedance, set by the
termination switch adjacent to the connector.
Word clock selection and routing is done via the menu
system; see sections page 21 & page 31.
Keyboard input. A PS/2 connector is available on both
front and rear panels for the connection of a standard
QWERTY keyboard. The CDR-882 supports CD Text with
audio CDs in both record and replay modes, and connection
of a standard keyboard provides a rapid means of entering
textual data to be displayed on the front of suitably-equipped
CD players (including the CDR-882).
AC mains input. The CDR-882 is powered via a standard
IEC connector. The CDR-882’s design includes a universal
power supply and will accept all AC mains voltages from
100 to 240V, 50 to 60Hz.