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USER MANUAL
I MODEL CM300 I
Console Mount User Station
I MODEL RM300 I
Rack Mount User Station
RTSTM
9350-2643-00 Rev E 2/01
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PROPRIETARY NOTICE CUSTOMER SUPPORT The RTS product information and design disclosed herein Technical questions should be directed to: were originated by and are the property of Telex Communications, Inc. Telex reserves all patent, Customer Service Department proprietary design, manufacturing, reproduction, use and RTSfl'elex sales rights thereto, and to any dcle disclosed therein. 12000 Portland Avenue South except to the extent rights are expressly granted to others. Bumsville, MN
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Figure 1-2 CM3001RMUW) Block Disgram
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On the Model CM300/Rhi3w, a latching switch or momentary push button tums the microphone on. 1.1 DESCRIPTION The mommtary push hutton allows quick bursts of The Model CM3W is a console mount, twhl communication, especially useful in a high noise mvi- intercom user station. The Model RMUX) is a rack mnmt, ronmmt. Ihe latched position allows 'hpnds fne' op two-chmd intmom user station. The user station is don, when the llscr aeuls to have two way conversation designed to he used in a ful
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13 CM3oO/RM3Ml SPJXWICATIONS JI..hbw ArdUir Input DC Voltage Voltage ruin 34dB ovlplt voltage 8 ~~lu puli-wprt into 25 n lnwutpuliiatouobm qt- FrrqmcyRapomt lSObemto8kiloktzr3dB NUI'EI DO NOT USE BEADPEONES IMPEDANCES LESS THANISOHrds. SidUms AdjmttncntRrqy -2OdBtoIullo. (YCIIILL SpdiDgFrcqwyr ZO,WObem*1whcRE -u 5haas2bem - B..*.tCrue(u MMiaophm XLRtypcCpi~tuM!C CuboDMicmpbmc llCIPsdudpboacj.cl53drevit u.rca8sdam InPt XLRtypc3pinfcmk - XLR typc male M~~L Ndrc..ML.r*. One u
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NW: Opemdion of a aydm or maximum load dOCS not allow for other miations such as fempermun, line 2.1 Power Rquhm&, Type Of System, Pow- *e, able re-, and suw. A nwrt pnrdcni Method And Power Supply(i) oppmoah&&opc~~sy~~nononflrnn80% of -Pad*. Power Ranuremnts In (3) above, a ld power supply provides 12 to 24 volts To maintain a bridging 10,000 ohm0 bpedanw to the DC at 120 mill*mpms peak for esch station, or, for intenmu line, the CM300/RM300 requires +18 to +35 nmote single station op
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23 millipmpms for tbe CM300/RM300, 33 millirmperes for tbe CM300URM300L). The ability of hadphones to shut out mwmted envi- ~talaoigvaiesfromnons(odBisolation)to.bout Euviroampf Table 2-1 shows typical opentino 1/8th as ioud (30 dB isolation). The degree of isolation =ts and tbs ofof mi= pd. depads both on the design of the bssdset sad the A very quid openting mvhmnmt, such as a television hpacy colltmt of the mhtal noise. Lightweight, 'opm' hesdsetg such as the RTS System studio, may
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Anotha bmsfit of not "earth" grounding the circuit return is tht it prevents the htmhtion of noise through 'earth" curw(s from other equipmeat. If the RTS Systmes circuit gmund~tsthsc~l~nts,itisWrdythattheywillbc Wirsri?rcddsrrninssthe~opwrtingdist.nCc hevd is interfering noise on the d4on line. (where the DC voltage drop is the limiting factor). Ths following eqlutioas apply for a wndnctor size of #22 AWG. a minimwn user station voltage of 18.0 volts, d a minimum power supply voltage a
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IntheIWIn~systemd~sluroscommm ciraritgrcundrshnn. due to common^ XLR431 mk ~cmbeducedbyn6ing22pylcnhieldeduMe, III~~M: -55 mu, n~mirul and~elillgsbidddninwinswithcircuitrchunwirrs. Output Lvcl to lll!d&onc: 10 volta pak-tc-pd. Capacitive cmssWL cm be raducsd by using rwo rbidded apm circuit. jmir. Owwirsofonc~~tocbrnnelona(pin2), a~~0fb0otbtr~~toEh.nna~@in3), Pin1-M*ropbwcbw the nmrining wires are circuit retmn (pin 1). (See Cable Pin 2 - Miempbwc high Wiring Diagnm at back of mmd).
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Table 2-1 Table 2-2 Typid Openting Envircammts, Typid Opeding Environments, Embmmtal Noise, Sormd PIcssure Lsvel, ~PrcssureLevel, at10~~ at= sQw2 Seb, s@x!zi m Aimaft 120dBto160dB Muimum AUomb1.3 -=EX? 140 dB Orchestra, 75 pie, (Perlis) or 140 dB LII267 + cM3oo/RM300, Pipe org.n, (PerLs) 10 dB below Clipping 114 dB Rock Concat 11OdBto140dB DT109 + CM300/RM300, Pirno, Parks 120 dB 10 dB Mow Clipping 111 dB Blaring Rdio 110 dB LH268 + CM300/RM300, 10 dB bdow Clippiag 110 dB
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Figure3 Fmnt Panel, Model CMU)O/RM300 User Station Page 12
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SECTION 3: OPERATION 3.1 Operating Controls And Conaectors The refmce numbcrs in below comspond to the circled numbers in Figure 3. Ref No. Name CHannel &kt Switch 1 2 Selects 1 of 2 cham& (staadard) or 1 of 3 chPnncls (optid). The optional Call 1) Light operates on the channel selected by this switch. Tbe CHmuel select switch is omitted in the Single Chnnrd (SC) option. 2) MIC ON-OFF toggle A latchingrction switch. A m~mmtnry-saion microphoae dle switch on the Model CM300/RM300 MIC ON
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Sectim 7: DIAGRIMS I DRAWINGS Dacumcnt Nunbet m These dnnvinga applies 0 CM300 Unifs with CC33 or CC40 wnlr. OD2993 A Outline hawin& CMU)O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -15 ID2993 A Installation hawing. CM300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 These dnawings applicp & CM300lRM300 Units with CC33 orCC40 d. - A Cable Wiring Diagrams, 2Chwncl SystemM!ha~el System . . . . . . . . . . . . . . 17 TM1786 B 12-volt Battcry Opedon /
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0D2993, Outline Drawing, CM3OO Page 15
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3 Channel 2 n 3 Common I 2 Channel 1 2 Common I 1 Drain Wins 1 - - - To Supply To Station --, 3 n Gm Channel 3 n 3 I Elk N.C. , , , , N.C. L-1 Red Channel 2 2 c To Supply To Station - Cable Wiring Di, Th Channel Systen Page 17
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