HHB comm CDR-882 user manual Multi-MachineOperation, Multi-Machine+ DualBurn Operation

Advanced Features & Operation

Multi-Machine Operation	Note that interconnecting multiple CDR-882’s in this way only
	transfers control data between machines, not audio. In Multi-
The CDR-882’s recording capacity may be expanded by the	Machine modes, the recommended method of distributing audio
	to each machine is to interconnect them via S/PDIF. By doing
connection of up to three further CDR-882 units. The operating
	so, not only is audio transferred in the digital domain, but the
system supports a number of Multi Machine modes to facilitate
	embedded word clock within the S/PDIF bitstream ensures that
such an expansion.
	all machines will be sample-locked. Additionally, Track ID and CD
In such a system, one CDR-882 is designated the Master	Text information is also transferred.
machine and the others are assigned Slave status. Units are	The audio source to the Master machine may be of any type,
connected together via their RS232 serial remote control
	analogue or digital. Connect the first machine’s S/PDIF output
connectors to permit the transmission of control commands,
	(coaxial or optical) to the second machine’s corresponding
tallies and other data between Master and Slave recorders.
	S/PDIF input, and continue to “daisy-chain” the machines via
A CDR-882 will assume Master status by default. Altering a	S/PDIF in this way to interconnect all the machines being used.
	The default I/P SELECT setting for the second and subsequent
unit’s status to Slave is done through the menu system, at
	machines is S/PDIF coaxial, and the Clock Source will default to
DiscSpan > Master/Slave. The default setting is MASTER,
	Digital Input.
changing it to SLAVE assigns the unit as a SLAVE. Additionally,
all machines interconnected to form a multi-Machine system	Monitoring of individual CDR-882’s in a permanent or semi-
must have Multi-Machine mode enabled; this is done at
	permanent multi-machine system may necessitate wiring the
DiscSpan > Multi-Machine, which should be changed from the
	analogue or digital outputs (as appropriate) of each CDR-882 to
default setting MASTER to SLAVE. (See page 39 for full details.)
	an external switching arrangement of some description. This will
The control interconnection between Master and (the first) Slave	enable the operator to use any machine in the chain for playback
	(as recording permits), or to monitor the record signal at any
should be made via a “straight” cable between the LINK OUTPUT
	point in the chain with the MONITOR buttons.
RS232 connector of the Master machine and the LINK INPUT
RS232 connector of the first Slave machine. A second Slave	Multi-Machine + DualBurn Operation
machine should have its LINK INPUT connected in a “daisy-chain”
manner to the LINK OUTPUT of the first Slave, and so on for as	DUALBURN mode may be selected whilst Multi-Machine
many machines are being used.
	operation is enabled. This permits up to eight discs to be
The serial cable for control interconnection will need to be male-	recorded simultaneously.
to-female, with pins 2, 3 and 5 on each connector connected	As with Single-Machine DualBurn mode, all blank discs should
directly together thus:
	ideally be of equal length. The Master machine’s transport
	buttons will control all Slave machines as well as itself. Having
	loaded all drives with blank discs, press the RECORD button on
	the Master machine; this will put all the machines in the system
	into RECORD PAUSE mode.
	Depending on the options selected for Start ID, recording
	will commence on all drives simultaneously either when an
	ID is received or when the PLAY/PAUSE button is pressed
	if recording is being started manually. Manual or automatic
	insertion of Track IDs will be passed from Master to Slaves in
	the same manner, and actioned on all discs being recorded.

CDR-882 Simplified 3-Machine Analogue System

42 www.hhb.co.uk CDR-882 User Manual Version 1.0