Rs422 Slave Functions - Akai DD1500 User Manual

18 - UTILITIES - RS422 - SLAVE

RS422 SLAVE FUNCTIONS

It is also possible to use the DD1500m on its own under the control of a video edit
controller as an RS422 slave. In this condition, the DD1500m will behave much like a
VTR. In this way, as you perform your video edits, the DD1500m will capture the audio
edits and so the audio tracks will be built up on the DD1500. That disk may then be
removed and sent to post-production for 'sweetening'. In this way, you alleviate the need
for lengthy auto-conform procedures as the audio is being compiled at the same time as
the video edits.
NOTE: You may prefer to use the Akai DR8 fitted with the optional RS422 board for this
purpose as it's self-contained 8-track operation offers a more cost effective means to
capturing audio in this way. Disks created on the DR8 are fully compatible on the DD1500
and so may be transferred for post-production easily. Please refer to the DR8 operator's
manual for details on how to set up RS422 slave operation.
If you are using a DD1000 as an RS422 slave, these disks may also be transferred to a
DD1500 for post-production although you will note that if you are using a 650Mb MO disk,
there may be a limit to the number of tracks available for such purposes. If you are using
a 1.3Gb MO disk with the DD1000 (either a DD1000 fitted with the latest software or a
DD1000i), then you will obtain the same track performance out of it when it is transferred
to the DD1500.
To set the DD1500 as an RS422 slave, you must first configure the DD1500m with a
DL1500 connected. After the DD1500m has been configured, you should save the
settings to FLASH ROM (press SAVE - SETTINGS - FLASH ROM - EXECUTE). After that,
the DD1500m may be controlled by the video edit controller without a DL1500 connected.
There are two ways the DD1500 may be used as an RS422 slave. The first is known as
'EAVESDROPPING' mode. Here, the DD1500 is connected to the video edit controller via
a 'Y' lead that goes to the VTR and also to the DD1500's RS422 connector (LTC
connection to the DD1500 is also required). In this mode, the DD1500m will simply 'copy'
any commands sent to the VTR but will not report back any status to the edit controller - it
will simply be 'listening in' to anything sent to the VTR and performing the same actions.
FULL SLAVE mode is where the DD1500m emulates a VTR exactly, reporting its status
back to the video edit controller.
Either mode is applicable for capturing audio edits with video edits - the mode you choose
largely depends on your setup.
Page 182 Version 2.00 - March, 1996