Alesis owner manual Connecting the RMD to the M20 System, July

RMD, Appendix R

July, 1998

CONNECTING THE RMD TO THE M20 SYSTEM

POWER

The RMD works with any AC voltage from 90 to 250 volts, 50 to 60 Hz. This eliminates the need for transformers or voltage switches. The RMD ships with an IEC-spec power cord for the country to which the RMD was shipped.

The RMD’s IEC-spec AC cord is designed for connection to an outlet that includes three pins, with the third pin connected to ground. Do not substitute a non-grounded AC cord or lift the ground.

The ground connection is an important safety feature designed to keep the chasis of electronic devices such as the M20, CADI remote, or RMD at ground potential. Unfortunately, the presence of a third ground pin does not always indicate that an outlet is properly grounded. Use an AC line tester to determine this. If the outlet is not grounded, consult with a licensed electrician. When the AC current is suspected of having unstable voltage and/or frequency, a professional power conditioner should be used.

The RMD is supplied with a standard detachable power cord. If the AC cable is too long or short for the installation, you may substitute a UL-approved power cable of the proper length, available in many electronics or computer stores (type “NEMA to CEE”).

CONNECTION TO M20(S) AND CADI AUTOLOCATOR

The RMD comes with one 25-foot long RJ-45 category 5 terminated (control) cable for connection to one M20. If installation requires a longer cable (or more cables), use high- quality category 5 spec’ed cable. Exceptional cable lengths of 1000 feet or more can be used, depending on the quality of the cable.

The RMD may be connected to up to four M20s. If an RMD is to be used in conjunction with an M20 and the CADI autolocator/remote control, an RJ-45 connector labeled “CADI” is provided on the back panel of the RMD for connecting the CADI remote (see figure 1).

To connect the RMD to a four-M20 system:

1.Connect one end of a control cable to the REMOTE connector on the first M20 (tracks 1- 8), and connect the other end to the MACHINE 1 connector on the RMD.

2.Connect one end of a control cable to the REMOTE connector on the second M20 (tracks 9-16), and connect the other end to the MACHINE 2 connector on the RMD.

3.Connect one end of a control cable to the REMOTE connector on the third M20 (tracks 17-24), and connect the other end to the MACHINE 3 connector on the RMD.

4.Connect one end of a control cable to the REMOTE connector on the fourth M20 (tracks 25-32), and connect the other end to the MACHINE 4 connector on the RMD.

To connect the RMD to a CADI:

R-4 RMD MANUAL 1.00