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RCP-PLUS User Manual

7.8 Adv Advanced Functions Page

Flip–Presstoipormirror,pressagaintocancel

Infrared – On most cameras this is simply black & white mode

Save Current Camera–Savecurrentcamerasettingtoanamedprole

Step 1. Press Yes

Step 2. Touch a check box

Step 3. Press Save

Step 4. Enter a name using Left & Right knobs

Step 5. Press Accept

Asavedprolemayberecalledwhenassigninganewcameratoabutton.

(See section 3 or 5 Assigning Cameras).

AnexistingProlemaybeLoadedtothecameraorSavedtoanewProle.

Cam Fcty Reset – This triggers a Factory Reset to the connected camera (not the RCP). Careful!

Admin – Administration setting special functions

Basic Mode – Limits RCP panel to only essential functions

Step 1. Enter a 4-digit Pass code using knobs and press Lock.Asimpliedpageappearsallowingonly

exposureadjustments

Step 2.Toreturntonormalfunction,pressUnlock,enterthePasscode,pressUnlock.

Factory Reset–Thisclearsallsettingsandallcameraassignments.ItdoesnoterasesavedProlesand

does not change the IP address.

Sync Camera(s) –Sync(match)camerastothecurrentRCPadjustments.

Baud Rate – For RS485 connections only.

RCP-PLUS is designed to work under adverse conditions and to be simple to implement.

Key features:

Simple,two-wirebalancedconnections(likebalancedaudio).Groundwireisnotrequired.

Multipledevicescanbeconnectedacrossthesamepairofwires.Thereisnormallynoneedforhubs,

 activerepeaters,etc.

Thepreferredwiretypeissimpletwistedpair.Doorbellwire,apairinsideCAT5/6cable,etc.

Shielded wire is OK but attaching the shield at only one end is best practice. This is especially true when

 camerasarepoweredfromadifferentsourcethanthecontrollerwhichcouldleadtoACcurrentowing

through the shield.

Speakerwire,ACwireisnotrecommendedduetonotwist.Twistingrejectsinterferencewhichbecomes

important for long wires.

Whilemanydevicescanbeconnectedatonce,theuseofViscaprotocollimitsthenumberofdevices

(cameras) to 7.

RS485connectionsareusuallylabeled“+”and“-“.Thisdoesnotindicatepower,onlydatapolaritysoitis

 safetoconnectwiresbackwards,theysimplywon’tworkthatway.

MarshallMiniatureandCompactcameramodelsfollowtheruleof“plus”to“plus”and“minus”to 

 “minus”.Thatis,theconnectionmarked+atthecamerashouldgototheconnectionmarked+at

the controller.

The most common reason a camera does not respond to the controller is that the Visca ID # in the

camera does not match the Visca ID # set in the controller.

The second most common reason is that the wire polarity is reversed. Some 3rd party cameras follow

a + to – rule which can be confusing. This is why simply swapping the connections at one end of the wire

is worth trying when an RS485 system does not work.

Ifonecameraonastringisconnectedinreverse,itwillstopalldevicesonthestringfrom

 communicating.Itisbesttotestwithjustonecamerabeforeattachingtherestofthecamerastoastring.

Several Baud rates (data speed) are selectable with RS485. All devices on a string must be set to the

 samerate.Thedefaultvalueisalways9600.ThereisnorealadvantagetousinghigherBaudrates

 sincecameracontrolinformationisverysmallandundemanding.Infact,ahigherBaudratereduces

reliability over long wire runs.

AcommonquestioniswhetherRS485,RS422andRS232canbeconnectedtogether.RS485andRS232

 arenotcompatiblewithoutaconverterand,eventhen,theymaynotworktogether.Somedevicesusing

RS422 will work with RS485. Refer to the manufacturer of those devices for details.

TwocontrollerscanoftenoperateonthesameRS485system.TheRS485specicationstatesthatthis

 ispossible.However,ViscaprotocolassumesacontrollerhasID#0,whichleavesID#1-7forcameras.

 Conictingmayoccurwhenusing3rdpartycontrollers.

Chapter 8: Tips and Best Practices for RS485 Connections

For Warranty information, please refer to Marshall website page:

marshall-usa.com/company/warranty.php

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