Sonifex ANT-EBU Instruction Manual

The ANT-EBU convertor box converts incoming AES-EBU, or Wharton clock
signals, to an MSF or DCF clock output, for use with the Sonifex RTC-1 PC clock
card, or the Sentinel+ range of audio logging machines.
1
ONOFF
2
3
4
AES-EBU
& SMPTE IN
MSF/DCF OUTRS232 &
WHARTON IN
A
NT-EBU
EBU to MSF/DCF Convertor
To use the convertor, connect either the AES-EBU, or the Wharton ( RS232 )
input to the respective inputs, depending on the one which you wish to use.
Using the DIP switches, configure the convertor to your requirements :
If you are using the AES-EBU input, set switch 3 to Off and set switch 1 to select
the frame rate of the input. Switch 1 is ignored for Wharton clock input :
Parameter Switch 3 0n Switch 3 Off
Input Wharton CLK SMPTE
Parameter Switch 1 0n Switch 1 Off
SMPTE Frames 24 & 25 30 & 30 DF
Switch 2 selects whether you output an MSF or DCF signal :
Parameter Switch 2 0n Switch 2 Off
Output MSF DCF
Then simply connect the MSF/DCF output cable between the MSF/DCF Out
socket and the RTC-1 card, or Sentinel+ “EXT CLOCK” input.
Important - The time-code converter should be reset after changing the switch
settings. This is achieved by turning the power off ( removing the MSF/DCF
output connector ) and then back on.
Specifications
Input Specifications
Input Signal Signal Rate Signal Levels
SMPTE \ EBU 24 Frames/s
25 Frames/s
30 Drop Frame
30 Non-Drop
5V balanced signal meeting
the RS422A standard.
Wharton Clock RS232 at 1200 baud/s Standard RS232 levels
Output Specifications
Output Signal Signal Levels
MSF 0-5V
DCF 0-5V

Connections
AES-EBU Input
The AES-EBU connector is a standard 3 pin XLR input with the following pin
assignments :
Pin1 : Screen
Pin2 : Phase
Pin3 : Non-phase
RS232 Input
The RS232 connector is a 9 way female ‘D’ Type socket with the following pin
assignments :
Pin1 : Not connected
Pin2 : RXD
Pin3 : Not connected
Pin4 : Not connected
Pin5 : Signal Ground
Pin6 : Not connected
Pin7 : Not connected
Pin8 : Not connected
Pin9 : Not connected
MSF/DCF Output
The clock connector is a balanced 9 way female ‘D’ Type socket with the
following pin assignments :
Pin1 : Signal Phase
Pin2 : Signal Non Phase
Pin3 : 0V
Pin4 : +12V
Pin5 : Not connected
Pin6 : 0V
Pin7 : 0V
Pin8 : Not connected
Pin9 : Not connected
ANT-EBU USER
HANDBOOK
Sonifex Ltd, 1997
All Rights Reserved
Revision 1.00b, September, 1997
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants., NN9 5QE, England.
Tel : [phone]
Fax : [phone]
Email : [email protected]
Website : http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent a commitment on
the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage whatsoever arising from the
use of information or any error contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying, recording, or information storage and retrieval systems, for any
purpose other than the purchaser's personal use, without the express written permission of Sonifex Ltd.
Unless otherwise noted, all names of companies, products and persons contained herein are part of a
completely fictitious adaptation and are designed solely to document the use of Sonifex products.