D21m System
6.3.2

MADI I/O Cards (,,)

A949.0430/.0431/.0433		

The MADI I/O cards can establish a 64-channel MADI input and output to theD21m frame, with 44.1/48/88.2/96 kHz operation. Three different versions
are available:
A949.0430xx Optical / multi-mode fibre
A949.0431xx Optical / single-mode fibre
A949.0433xx Twisted-pair (+ additional word clock out).
Optical inputs and out­puts are provided on SC connectors. The version withRJ45 connectors for twisted-pair cable features an additional word clockoutput on a BNC socket.		 The auxiliary interface can be used as a redundant link or, in 96 kHz operation, to extend the number of channels from 32 back to 64. Please note thatin this mode the two cables may only be used to connect from one MADI card
to another MADI card (i.e. it is not possible to link 32 channels to one MADI
card, and the other 32 channels to a different one).		 It is possible to transmit any serial control signals, such as MIDI or Sony
9-pin (machine control) through a MADI connection without losing any audio
bandwidth or microphone control of the remote I/O box. For this purpose, anRS422 connector is located on this card (hub frame side). The desired baudrate can be set with a rotary switch. The pinout of the RS422 connector canbe set to ‘device’ or ‘controller’ with a DIP switch, depending on the 3rd party
serial device connected.		
Max. cable length (A949.0430, multi-mode fibre, wavelength
1300 nm*, ø either 62.5 or 50 μm)
2 km			(A949.0431, single-mode fibre, wavelength
A949.0430
A949.0433			 1300 nm*, ø 9 μm)
15 km
A949.0431		
(A949.0433, CAT5e or better, flexible braid)
75 m		(A949.0433, CAT7, solid core)
120 m		Input frequencies				44.1/48/88.2/96 kHz ±100 ppm		
Current consumption (3.3 V)
0.4 A				 (5 V)
0.4 A		Operating temperature
0-40 °C		* different wavelengths on request
Lock LED

Lock LED
RX

TX

0...64 Ch

MADI In 1
Dual MADI Decoder

UART to Merger Card

MADI In 2

MADI Out 1

0...64 Ch
Dual MADI Encoder

TX

RS422
Port40UART from Merger Card

MADI Out 2

RS422
RX/TX

Backplane Connector

RXUser UART

Document generated: 04.03.15

D21m SystemMADI I/O Card, Optical Versions A949.0430 / A949.0431

*S1

S3

*S2

S4ON

Default Setting:87654321 87654321

12345678

Default
Setting:

S5

ON

MADI I/O Card, Twisted-Pair Version A949.0433
Default
Setting:

**S1

S5ON

12345678 12345678

Default
Setting:

Default
Setting:

S4
ON87654321

S3ON
87654321

Switches*S1 (On versions A949.0430, A949.0431 only)		
Toggle switch for 64 (factory default) or 56 channel selection.
**S1 (On version A949.0433 only)		
In case of connecting two cores, they must be synchronized. The twisted-paircable version of the MADI card provides a reserved wire pair for both themain and aux RJ45 sockets on which the sync signal can be transferred. Thesync transfer direction (from master to slave) is set using the DIP switches
S1 and S4.7/.8. Please note that in such a case the twisted-pair wiring has tobe done with a crossover cable. On the slave core, the WCLK output must be
patched to the WCLK input of the audio clock card.			
(refer to the block diagram on the next page)12345678 SettingOFF OFF OFF OFF ON ON ON ON Card is Master (factory default)
ON ON ON ON OFF OFF OFF OFF Card is SlaveNO OTHER SETTINGS ALLOWED !

Document generated: 04.03.15

41D21m System

Reserved pairs
for FS Synctransmission

S1.1

ACTIVE IF

S1.2

1

S1.5
S1.6
S1.3

0

S1.4

MADI
AUX
(RJ45)

Backplane Connector

MADI
MAIN(RJ45)

S1.7
S1.8
S4.7
S4.8

WCLK
OUT		

FS_SYS

Default DIP Switch Setting for Version A949.0433 (Card is WCLK Master)*S2 (On versions A949.0430, A949.0431 only)		
Rotary switch for baud rate selection of the RS422 user interface:
Position
01
2
3
4
5
6-9

S3

DIP switch for D21m channel count setting:
1
ON
ON
ON
ON
ON
ON
ON
ON
OFF
OFF:
OFF
-42Setting
115’200 bps (factory default)
57’600 bps
38’400 bps (9-pin)
31’250 bps (MIDI)
19’200 bps
9’600 bps
Reserved for future use

2
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON:
OFF-

3
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON:
OFF-

4
5
ON
OFF ONOFF ONOFF ONOFF ONOFF :OFF ON
ON
ON
ON
ON
ON
ON
ON- OFF- OFF:
- OFF

6
ON
ON
ON
ONOFF
OFF
OFF
OFF
ON
ON:
OFF

78 Number of Channels- 0 inputs- 8 inputs- 16 inputs- 24 inputs- 32 inputs- 40 inputs- 48 inputs- 56 inputs- 64 inputs (factory default)- NOT ALLOWEDON ON 0 outputs
ON OFF 8 outputs
OFF ON 16 outputs
OFF OFF 24 outputs
ON ON 32 outputs
ON OFF 40 outputs
OFF ON 48 outputs
OFF OFF 56 outputs
ON ON 64 outputs (factory default)
ON OFF:: NOT ALLOWEDOFF OFF

Document generated: 04.03.15

D21m System
S4Card Versions

ALL MADI Cards

Optical Versions only
(A949.0430, A949.0431)

Twisted-Pair Cable
Version only(A949.0433)

S5

DIP switch for MADI setting (on version A949.0433, the switches 4-8 areused differently, as indicated below):
Switch Setting
OFF: AUX IF is used for channel extension at 96 kHz (factory default)
ON: AUX IF is used for redundancy at 96 kHz
1(in 48 kHz mode, AUX IF is used for redundancy regardless of the switch setting)
Both OFF: Standard operation (factory default)
2, 3 Both ON: No communication on system UART (used for Hub-Hub interconnection)
One ON and one OFF: NOT ALLOWED.
4-7 Must be set to OFF (factory default)
Not used (factory default: OFF)
84
56Baud Rate
OFFOFFOFF 115’200 bps (factory default)
OFF
OFF
ON 57’600 bps
OFFON
OFF 38’400 bps (9-pin)
OFFON
ON 31’250 bps (MIDI)
ON
OFF
OFF 19’200 bps
ONOFF
ON 9’600 bps
ON
ON
OFF
Reserved for future use
...
...
...
78Setting (refer to **S1 above)ON
OFF BNC output carries D21m system word clock (factory default)
OFF
ON BNC output carries received word clock

DIP switch for RS422 pinout selection:
123
4
5
OFF OFF OFF OFF ONONONON

6ON

7ON8 Setting
ON RS422 Controller pinout
ON OFF OFF OFF OFF RS422 Device pinout (factorydefault)
NO OTHER SETTINGS ALLOWED!

Connector Pin Assignments		
CTRL (9pin D-type, female, UNC 4-40 thread)

Solder/Crimp View
(or Socket View)

9561Pin1
2
3
4
5
6789RS422 Controller
Chassis
RxD –
TxD +
GND
n.c.
GND
RxD +
TxD –
ChassisRS422 Device
Chassis
TxD –
RxD +
GND
n.c.
GND
TxD +
RxD –
Chassis		
MADI MAIN / MADI AUX (8pin RJ45) (on version A949.0433 only)

1Socket View

LEDs

Document generated: 04.03.15

8LOCKPin12345678Signal
MADI TxD +MADI TxD –MADI RxD +WCLK TxD/RxD +WCLK TxD/RxD –MADI RxD –reserved
reserved

On if a valid MADI signal is available at the input that is locked to the system
clock.

43