User manual

PS121 Presentation Switcher
3
PTN Electronics Limited www.PTN-electronics.com
Attention：
This is a manual for Presentation switcher PS121.
This manual is only an instruction for operators, not for any maintenance usage. The
functions described in this version are updated till Jan 2010. Any changes of functions
and parameters since then will be informed separately. Please refer to the dealers for
the latest details.
This manual is copyright PTN Electronics Limited. All rights reserved. No part of this
publication may be copied or reproduced without the prior written consent of PTN
Electronics Limited.
All product function is valid till 2010-1-1