Mackie SP1200 user service Internal Settings, Connecting the RS485 Serial Port, Bus Assign

Page 13

Connecting the RS485 Serial Port

This is a 3-pin Phoenix-type connector that follows standard RS485 protocol. Select either a data-grade shielded twisted pair cable or a standard 3-conductor microphone cable for this connection.

The RS485 port is wired as follows: Pin 1 = A (non-inverting I/O)

Pin 2 = G (Ground)

Pin 3 = B (inverting I/O)

The SPLinker Sound Palette Control PC application uses the RS485 serial port to connect between a computer and the SP1200. Connect the PC RS485 port to the first SP1200, and then inter- connect up to two SP1200s in the system using their RS485 connections.

Note: It may be necessary to install an RS485 interface card in the PC, or to use an RS232 to RS485 converter.

Two SP1200s can be connected together for stereo operation (each SP1200 assigned the same AMP ADDRESS, with one assigned Master, and the other Slave).

RS485

RS485

or

Laptop with

SPLinker PC Application

RS485

Internal Settings

Note: There are several settings that can be changed inside the SP1200. These settings should be made prior to installing the SP1200.

CAUTION: These servicing instructions are for use by qualified personnel only. To avoid electric shock, do not perform any

servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. Make sure the power is off and the power cord disconnected before removing the top cover to gain access to the inside of the SP1200.

Bus Assign

There are two 8-position DIP switches on the Input Board that allow you to assign a Program Input source to the balanced expansion bus. Each

Program Input Source has four corresponding switches: Left (+), Left (–), Right (+), and Right (–). Typically, you would move all four switches either down (off) or up (on to assign to expansion bus).

Note: These DIP switches can be

accessed without removing the cover of the unit. A flathead screwdriver at least 2"

(50.8 mm) long, and no larger in diameter than 1/8" (3.175 mm) is required. See illustration below.

CAUTION: When using multiple SP1200s that use the expansion bus, these switch settings must be unique to each unit or

you can damage your SP1200(s). Never assign more than one program source to the same channel on the Expansion Bus.

Insert screwdriver through grill hole to adjust DIP switches.

Use a flashlight to aid in viewing the DIP switches.

Approximate location of Bus Assign DIP switches.

Bus Assign DIP Switch Location

REAR PANEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

ON

 

1

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

J12

J11

J10

J9

J8

 

3

 

 

 

3

 

 

 

 

 

 

S3

 

 

 

 

 

 

 

 

4

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S2

 

 

 

S1

 

SP1200 INPUT BOARD

Signal

 

Switch No.

Signal

 

Switch No.

 

 

 

 

Input 1 Left (+)

S1-1

Input 3 Left (+)

S2-1

Input 1 Left (–)

S1-2

Input 3 Left (–)

S2-2

Input 1 Right (+)

S1-3

Input 3 Right (+)

S2-3

Input 1 Right (–)

S1-4

Input 3 Right (–)

S2-4

Input 2 Left (+)

S1-5

Input 4 Left (+)

S2-5

Input 2

Left (–)

S1-6

Input 4

Left (–)

S2-6

Input 2

Right (+)

S1-7

Input 4

Right (+)

S2-7

Input 2

Right (–)

S1-8

Input 4

Right (–)

S2-8

 

 

 

 

 

 

Bus Assign Switch Chart

SP1200 – 13

Image 13
Contents Output Suitable For Class 2 Wiring PowerOL on Paging MICTable of Contents Safety InstructionsIntroduction Key FeaturesRear Panel Features Front Panel FeaturesRisk of Fire Replace with Same Type Fuse and Rating LOW High PriorityDo not Open Avis Risque DE Choc Electrique NE PAS Ouvrir Output SuitableApplication Diagrams InstallationTypical Monaural Application Program Inputs Paging MIC Multiple SP1200s-Multiple Zones-Shared SourcesLocal Inputs Paging Program EQExpansion Expansion OUT Expansion with Local MicExpansion Expansion OUT Output Port Comm Remote BUS Outputs Room Combining-ZonesRecord DirectApplications Tips on Installing and Using the SP1200-Plan AheadConnecting the Microphones Connecting the Program SourcesConnecting the Speakers ConnectionsConnecting the Remote Bus Connecting the Expansion BusConnecting the RS485 Serial Port Internal SettingsBus Assign EQ Bypass 70V/100V/8 Ohm SettingsThermal Considerations AC Power ConsiderationsVoltage Conversion Internal Switch and Jumper Settings External Switch SettingsOperation SP1200 Quick StartAmbient MIC Input Local MIC/LINE InputRemote RS485Using the 3-Band EQ Using InputsInput 1 and the Direct Output Input 4 PriorityUsing the Ambient Mic Using the Paging MicSetting the Gain Setting the VOX ThresholdAmbient Mic Calibration and Placement Using the Local MIC/LINE InputUsing the Remote Connection Using the PRE OUT/AMP ConnectionsUsing the RS485 Connection Zone a OutputUsing a 3rd Party Control System Using the SPLinker Sound Palette ControllerUpgrading the Software SP1200 Block Diagram SpecificationsPower Amplifier Section SP1200 SpecificationsAppendix a Default Settings Service InformationAppendix B Button Modes SP1200 Button Modes Press 2 on Power Up Ambient Mic Preamp MeteringAppendix C Voltage Conversion Mackie Industrial