Alesis ADAT-RMB User Manual

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T E T E R B R I D G C

ReferenceManual

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ReferenceManual

@1993AlesisCorooration

'.ABLEOF GONIENJS

CHAPPJEPI. t INIP,ODUGIION

1.0 ABOUTTHERMB...........

..............1

1.1

ABOUTTTTTSMANUAL.....................

..........,.....2

1.2

OVERVIEWOF MAIN FI.JNCTIONS

 

2.3 MOUNTING TO THE BRC

CHAPPIEP,3c BAEIG OPERAIION

3.0 POWERING-UP

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CHAPJER l s ftttRODUCJtOrt

I.O ABOUI rHE F/NB

Congratulations! You,ve just purchased an invaluableaddition

to the BRC/ADAT system.The RMB RemoteMeterBridge is designed_to_giveyou instant level information by providing15_ se€mentLED bargraph metersfor up togZ aOaftracks.In- addition, LED indicators are provided for displayingthe record

and input statusof eachtrack. Th"\MB is plrfect iormounting atop the BRCMaster RemoteControl, or ini standard19"

equipment rack, or it can be installed aboveyour mixingconsole. Here are some of the featuresthe RMB will provide yori:

o32 channel meter Uri{gc.15-segmentLEDbargraphmeters kq:p you informed of the leveli for up to gZ tiacis (aADATs). The metershave two decayipeeds, fast andslow, which control the time it takes for ihe level indicatorsto fall back down when audio is no longer presentor thetape transport is stopped.

Selectablepeak mode. Eachtime a track,slevelreachesa new peak, the corresponding LED on the RMB willeither remain

lit momentarily,or continuouslp or not at all,depending on

the mode you selectfrom the front panel. All peakLEDsian be instantly clearedfrom the displai with the pressof a single button.

ADAT interaction. Not only doesthe RMB displaythe levels of eachADAT track, it also adjustseachADAT,i bargraph display to match the RMB,s configuration. If yousel6ct' Momentary PeakMode, the ADAIs will also beset to the

samemode automatically. When you clear the peak LEDson the RMB, the peaksin the ADATJ displays areilsocleared.

Easy hookup and operation. The RMB can either be mounted

atop the BRC,orrack-mountedin a standard 19,'equipmentrack. Four dual male,9-pinD connector cablesare ..iedto

link the RMB with up to four ADATs.

Voltage-tolerant power supply. The RMB acceptsany AC voltage between 90 and 250 volts.

I.I ABOUI IHT9 MANUAL

This manual is designed to give you a basic overview of the RMB'ssehrp and operation. For more information on digital recording, seeAppendix 1 in the ADAT manual. Appendix 2 in the ADAT manual is a glossaryof digital recording terms that may be helpful as you read this manual.

In this manual, buttons and LEDs are spelled with all capital letters (such as DECAY SPEEDLEDs or PEAK CLEAR button).

1.2OYERY'EWOF '',A'N}UNCJIONS

Here is a brief rundown of the RMB'smain functions:

1.2A BargraphMeters

Levels for 32 ADAT tracks are displayed using lFsegment I.ED bargraph indicators, ranging from -50 to 0 dB. Below each bargraph indicator are two additional LEDs, used to indicate each track'srecord and input status.

For information about setting levels, refer to section 3.3 in the ADAT Reference Manual.

1.2B DecaySpeeds

The RMB has two speeds(fast or slow) to control the rate at which eadr track'slevel indicator will fall back down when audio is no longer present/ or the tape transport is stopped.

1.2C Peak Modes

The RMB usesthree different peak modes: Momentary, Continuous and Off. When a track'slevel reachesits peak, the

corresponding LED will either remain lit for a moment, or remain lit continuously (until the PEAK CLEAR button is

pressed), or will not remain lit if the Peak Mode is turned off.

CHAPIER 2s HOOKUP

2.O POWER

The RMB works with any AC voltage from 90 to 250 volts, 50 to 60 Hz. This eliminates the need for transformers or voltage switches. The RMB comes with a line cord for the destination to whidr the RMB is shipped.

The RMB'sIEC-specACcord (do not substitute any other AC cord) is designed for connection to an outlet that includes three pins, with the third pin connected to ground. The ground connectionis an important safety feature designedto keep the chassisof electronicdevicessuch as the ADAT,BRC,AI-1and RMB at ground potential. Unfortunately, the presenceof a third ground pin doesnot 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 licensedelectrician.When AC currents are suspectedof being highly unstable in voltage and frequencp a professional power conditioner should be used.

2.1 coturuEc',oilto ADAIfst

The RMB comeswith a snakewith four male,9-pinD connectors at each end (labeled1-4),which is used to connect the RMB to up to four ADATs. The end of the snakefanned out into short cablesshould connectto the RMB, and the end with longer cablesshould connectto the ADATs. If the installation requires a cablelonger than that supplied, usehigh-qualityshielded cableswiredpin-to-pin.Lengths of 100feet or more may be acceptable,depending upon the quality of the cablesand connectorsused. The ADATs are connectedto the corresponding connectors on the back of the RMB, with respect to the tracks eadr ADAT is being used for (seefigure 1). These connections can be made while the power is on.

To connect the RMB to a four-ADATsystem:

1.Connect one end of the cable labeled "1" to the Meter Bridge Out connectorof the first ADAT (tracks1-€),and connectthe other end to the Tracks1-8connectoron the RMB. Push each connectorfirmly into its socket,then tighten both screws;

2. Connect one end of the cable labeled

'Z'

to the Meter Bridge

Out connector of the second ADAT(tracks 9-15),and connect the other end to the Tracks9-15connector on the RMB;

3.Connect one end of the cable labeled "3" to the Meter Bridge Out connector of the third ADAT(tracks 17-24),and connect the other end to the Tracks17-24connector on the RMB;

4.Connect one end of the cable labeled '('to the Meter Bridge Out connector of the fourth ADAT(tracks 25-32),and connect the other end to the Tracks 2ts32 connector on the RMB.

Figure 1

f_____-l-_ir-__5

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----------------Sy c

+ MeterBridge

-4

2.2R,AGK-MOUNTINE

The two end blocks on either end of the RMB may be removed, if you wish to rack-mountthe unit using the rack ears induded with the RMB. The figure below indicates the rack ears'locations and the screws that mount the end blocks.

Fizure 2

T

g UseONLYthe1"hexscrews

, UseONLYthe5/15" phillips

t to attachthe end blocks

I sc?ewsto attachthe rackear!

NOTE: Unlike the BRC, the RMB end blocks will not fit over the rack ears. Depending on your installation neds, one or the other will be attached to the RMB.

2.3INOUNJ|/NE JO THE BRC

The RMB includes a mounting bracket for attaching to the top of the BRC Master Remote Control. The figures below illustrate how the mounting bracket may be attached to either side of the BRC,and to the bottom of the RMB.

1.Turn the RMB upside down, its front facing you, and remove the three screwsin the middle of the RMB.

Place the attachment bar on the bottom of the RMB, with its arms extending towards you. Fasten the attachment bar to the RMB using the three soews rernoved in step L and the washers provided.

Match up the two holes in the side of the attachment bar with the threaded holes in the side of the RMB. Attach the RMB/bar assemblyto the BRCby inserting one screw and washer on each side, through the front hole. Tighten these two screws securelv.

IMPORTANTi MAKE SURETHESESCREWSARE THE 5/16" SCREWSINCLUDED WITI{ THE RMB PACKAGE, NOT THE LONGER SCREWSINCLUDED WTTFITHE BRC AND INTENDED FOR USE WITH THE ROLL-AROTINDSTAND.

NOTE; If your BRCis attachedto a stand,skip to step 5. If your BRCis table standing, move on to step 4.