Philips ADAT-4 ユーザーズマニュアル

This section provides information about the ADAT-4’s internal jumpers and switches. 

NOTE  For detailed instructions on opening and closing the ADAT-4, see “Inside the 

Module.” 

The figure below shows the ADAT-4’s internal jumper locations: 

 

20/24 Bit

Jumper

Word Clock 

Polarity Jumper

ADAT-4

04-0236-

G

R

AHAM

-PAT

T

E

N SYST

EM

S

G

R

ASS VAL

L

EY,

 CAL

IF

O

RNI

A

Made in U.S

.A

.

J5

SW2

J2

Status

Dip Switch

 

 

•  J2 is the 20/24 Bit jumper.   

1
2

 

–  To set all 4 channels to 24 bits, install the jumper.  This is the default 

configuration. 

1
2

 

–  To set all 4 channels to 20 bits, remove the jumper.  In 20-bit mode, any 

auxiliary data on the AES inputs will be discarded. 

•  J5 is the Word Clock Input Polarity jumper.  

1
2
3

 

–  To leave work clock input reference normal, strap the jumper between pins 

1 and 2.  The rising edge is used as reference. 

1
2
3

 

–  To invert the work clock input reference, strap the jumper between pins 2 

and 3.  The falling edge is used as reference.