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RS232 Knekt Interface

10

CD player has been selected as the “source” device for room eight, sending the command
[?8MODE] would return the list of MODE command/parameter combinations available.

C

OMMAND

-R

ESPONSE 

T

IMING

The time interval between receiving a command and the response being returned is dependant on
both the type of command, and on the individual equipment the command is destined for. The
timing of the RS232 communications between the Intersekt and the controlling device is set by the
baud rate, and the number of characters in the command/response. The communications protocol
between the Intersekt and the controlled device is based on the RC5 standard, and the time depends
on the particular command sequence required to perform the requested task. The diagram shows the
communication transactions and maximum timings required for each  command type.

RS232

Command

RS232

Response

RS232

Command

RS232

Response

RC5

Command

RS232

Command

RS232

Response

RC5

Command

RC5

Response

1. INTERNAL - no Intersekt to “amplifier” or “source” device communications

2. STANDARD - “amplifier” or “source” device does not acknowledge Intersekt RC5 command

3. EXTENDED - “amplifier” or “source” device acknowledges Intersekt RC5 command

Baud

Baud

Baud

120ms

Baud

Baud

250ms

Baud

RS232

Command

RS232

Response

RC5

Command

RC5

Response

RC5

Command

RC5

Response

4. AUTO - extended command with following automatic read of “amplifier” or “source” device status

Baud

250ms

Baud

25ms

25ms

250ms

25ms

Baud

25ms

Baud

250ms

(write data command)

(read status command)

(write data command)

(write data or read status command)

Содержание RS232 KNEKT INTERFACE

Страница 1: ...LINN PRODUCT RS232 KNEKT INTERFACE...

Страница 2: ...RING EQUIPMENT 9 ON LINE HELP 9 COMMAND RESPONSE TIMING 10 EXAMPLE 11 ASCII COMMAND TABLES 12 SYSTEM COMMANDS 12 rINUSE value 12 rPWRDWN 12 rDATE p 12 rTIME p 12 BAUD p 13 PC p 13 rAMP name 13 rSRC na...

Страница 3: ...KAIRN COMMANDS 21 rVOL p 21 rBAL p 21 rLIS p 21 rREC p 22 rMUTE p 22 rFADE p 22 rMONO 22 KARIK MIMIK COMMANDS 23 rDSPLY 23 rINDX p 23 rOPEN 23 rMODE p 23 rSKIP p 23 rSRCH p 24 rDAO p 24 rRPT p 24 rTRK...

Страница 4: ...nekt Interface 3 rMUTE p 31 rNORM 31 rAINP p 32 rVINP p 32 rDINP p 32 rDREC in rout 33 rSREC ain vin rout 33 rROUT p 33 rSTBY p 34 rOSG p 34 rQUIET p 34 rSURR p 34 GENERIC RC5 COMMANDS 35 rSTD p 35 rE...

Страница 5: ...RCU either at the main system or in the remote room is the responsibility of the third party controlling device Other RCU controlled rooms in the Knekt system are unaffected and operate both Linn and...

Страница 6: ...port If local Linn sources are used in the remote room they are connected as normal AV5103 Kairn Parallel main system The cable from the RCU port or the ROOM 1 port of the Intersekt is connected to th...

Страница 7: ...uration allows the remote in out of the AV5103 Kairn to be connected to any of the Intersekt ROOM ports via an upload converter Linn part PCAS180 which adapts the remote in out phono connections to th...

Страница 8: ...of the cable adapter are connected to the AV5103 and the Knekt Line Receiver in a REMOTE IN OUT loop using two upload converters Linn part PCAS180 as shown in the diagram The REMOTE IN OUT of a local...

Страница 9: ...umber being controlled and generating the response A status text string STR relevant to the received command may then be return If the command was not recognised or if one of its parameters was out of...

Страница 10: ...r or source device status is read into data buffers within the Intersekt when the system commands rSTAT AMP or rSTAT SRC are received or when a command which automatically reads the current device sta...

Страница 11: ...n the particular command sequence required to perform the requested task The diagram shows the communication transactions and maximum timings required for each command type RS232 Command RS232 Respons...

Страница 12: ...rc 8 CR read source device status 8trk 8TRK 4 CR return current track number 8mute y 8 CR mute the audio output 8mlis1 8 CR select main listen source 1 on Intersekt 8lis1 8 CR select AUDIO IN 1 dA on...

Страница 13: ...down their local systems An unsolicited PWRDWN CR response is generated when an RCU controlled room instructs the Intersekt to inform the RS232 controlled rooms to power down their local systems Comm...

Страница 14: ...maximum number of room interface cards allowed is 16 providing 128 rooms Command Response Description PC numOFmax CR Sets the PC port address PC PC numOFmax CR Reads the PC port address rAMP name Sele...

Страница 15: ...r CR Selects generic RC5 commands rSRC rSRC name CR Returns the selected command set name rSTAT p Reads the current amplifier or source device status into data buffers within the Intersekt Command Res...

Страница 16: ...ecord path for a main system source The main system source can be recorded on a main system recording device or on a recording device local to the room On expanded Intersekt systems that have 2 or mor...

Страница 17: ...tem or as a normal room Note that only room 1 can set the MAIN status while any room can read it Command Response Description 1MAIN Y 1 CR Operate room 1 in parallel to main system 1MAIN N 1 CR Operat...

Страница 18: ...ue 0 to 60 rVOL rVOL value CR Return current volume level rBAL p Sets or returns the current balance level Command Response Description rBAL R r CR Shift balance 1 step to right rBAL L r CR Shift bala...

Страница 19: ...s the audio output fade muting status for subsequent rMUTE p commands Command Response Description rFADE N r CR Disable fade muting i e enable abrupt muting rFADE Y r CR Enable fade muting rMONO Toggl...

Страница 20: ...volume level rBAL p Sets or returns the current balance level Command Response Description rBAL R r CR Shift balance 1 step to right rBAL L r CR Shift balance 1 step to left rBAL value r CR Set absol...

Страница 21: ...e rREC rREC name CR Return current record input rMUTE p Sets or returns the current audio output mute status Command Response Description rMUTE N r CR Unmutes the audio output rMUTE Y r CR Mutes the a...

Страница 22: ...rBAL p Sets or returns the current balance level Command Response Description rBAL R r CR Shift balance 1 step to right rBAL L r CR Shift balance 1 step to left rBAL value r CR Set absolute balance v...

Страница 23: ...d input rMUTE p Sets or returns the current audio output mute status Command Response Description rMUTE N r CR Unmutes the audio output rMUTE Y r CR Mutes the audio output rMUTE rMUTE N CR rMUTE Y CR...

Страница 24: ...escription rINDX value r CR Select index number value 1 to 99 rINDX r CR Select next index number rINDX r CR Select previous index number rINDX rINDX value CR Return current index number rOPEN Toggles...

Страница 25: ...O Y r CR Enables the Digital Audio Output rDAO N r CR Disables the Digital Audio Output rDAO rDAO Y CR rDAO N CR Returns the current DAO status rRPT p Sets or returns the current repeat function statu...

Страница 26: ...30secs elapse rTUNE r CR Step down tune frequency rTUNE S r CR Stop current increase decrease operation rTUNE C r CR Continue current increase decrease operation reset 30sec timer rTUNE rTUNE value CR...

Страница 27: ...Command Response Description rMTHR E r CR Enable mute threshold mode rMTHR value r CR Set mute threshold level value 3 to 80 rMNO p Sets or returns the current mono status Command Response Description...

Страница 28: ...ved or 30secs elapse rTUNE r CR Step up tune frequency rTUNE r CR Decrease tune frequency till stop received or 30secs elapse rTUNE r CR Step down tune frequency rTUNE S r CR Stop current increase dec...

Страница 29: ...ion operation rNARROW Y r CR Enable narrow function operation rNARROW rNARROW N CR rNARROW Y CR Return current narrow function status rMNO p Sets or returns the current mono status Command Response De...

Страница 30: ...e binary values assigned to each relay in the group For example rGRP 42ON would switch relays 2 4 and 6 on together The state of relays not defined in the group remain unchanged Relay Number Binary Va...

Страница 31: ...the main output connectors while the source device commands route their output to the multi room connectors as shown in the following table Input amplifier device Output source device Output Analogue...

Страница 32: ...balance mode is selected rVAL would shift the balance 1 step to the right Command Response Description rVAL r CR Increase value till stop received or 30secs elapse rVAL r CR Step up value by 1 rVAL r...

Страница 33: ...ion rVINP NONE r CR Disconnects the current video input rVINP VHSvalue r CR Select S VHS input 1 2 rVINP CVIvalue r CR Select CVBS input 1 8 rVINP rVINP name CR Returns the selected video input rDINP...

Страница 34: ...omatically reads back status Immediately after selecting a record path the rSREC command should be used to ensure that the record path was successfully set up The record path specified by ain and vin...

Страница 35: ...e Quiet mode of AC 3 source Not an AC 3 source rQUIET rQUIET N CR rQUIET Y CR rQUIET CR Return current Quiet status of AC 3 source Not an AC 3 source rSURR p Selects or returns the Surround mode Comma...

Страница 36: ...mes to repeat the command rr Command Response Description rSTD aacc r CR Sends command to room once rSTD aaccrr r CR Sends command to room rr times rSTD S r CR Stops command repeat sets repeat to 0 rS...

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