Alesis ALESIS M20 ID 1 Offline with the Cadi Remote, Storing Locate Points When ID 1 is Offline

M20 Software Version 2

ID 1 OFFLINE WITH THE CADI REMOTE

When the CADI remote is connected to multiple M20 recorders, the ID 1 master can now be taken offline. ID 1 maintains clock and serial control over all slaves (excluding 32-bit ABS time code). Using a CADI, when ID 1 is offline, its transport remains idle while the CADI transport controls operate the next online slave (known as the pseudo-master). Without a CADI connected, an offline ID 1 M20 transport will continue to operate normally and control online slaves.

CADI TAPE AND REFERENCE COUNTER INDICATIONS

WHEN ID 1 IS OFFLINE

The CADI’s display shows the pseudo-master’s ABS and Tape TC values on the Tape and Reference Counters respectively. The CADI’s Reference Counter will not show the pseudo- master’s SMPTE In, Locate Point, Internal Generator, or SMPTE Offset values.

STORING LOCATE POINTS WHEN ID 1 IS OFFLINE

When updating locate points (e.g. pressing Set Locate on the CADI), ID 1 locate points are overwritten based on the pseudo-master’s tape position. For example, pressing Copy Tape Location on the CADI will write ID 2’s tape position into ID 1’s currently selected locate address. The following scenarios suggest operation when ID 1 is offline:

M20 master and two slaves (ID 1 à ID 2 à ID 3)

ID 1 Offline

∙With ID 1 offline, the system will function normally. Transport operations performed on ID 1 will control online slaves (32-bit ABS time code is transmitted). The only difference is that ID 1 will ignore any remote online source input.

CADI with M20 master and two slaves (CADI à ID 1 à ID 2 à ID 3)

ID 1 Offline

∙The first online unit becomes the pseudo-master. The pseudo-master will operate like a master in regards to all transport functions, including Rollback, Replay, Loc Before Play, Mute Until Lock, etc.

∙The CADI will reflect ID 1 parameters with the following exceptions: Tape Counter, Reference Counter – Tape TC only, and transport status. The CADI will reflect the pseudo-master status in these cases.

∙All track enable selections and track groups along with All Input, All Safe, and All Clear functions initiated from the CADI will be ignored by ID 1. The “Machine Offline” message is temporarily displayed when a track selection is attempted (similar to what occurs when trying to record or input enable an offline ID 2 or greater unit).

∙There is no independent use of the ID 1 front panel functions other than Eject and Online functions.

M20 ADDENDUM 2.1 MA-2