Black Box ServSwitch ACU1001A, Manual

Page: 52 / 60

APPENDIX D: SERIAL PORT SETUP AND OPERATION
50
In most cases, we recommend that you use PS/2 mouse devices with a ServSwitch™ Brand
CAT5 KVM Extender system. If you have a PC that does not have a PS/2 mouse port:
•
Plug a PS/2 mouse into the Remote Unit.
•
Use a (PS/2) Serial Mouse Converter (AC244A) to connect the PC to your Local Unit.
The drivers supplied with certain Wacom Graphics Tablets dynamically
alter the baud rate and cannot be used with an ServSwitch™ Brand CAT5
KVM Extender system. There is a version of the driver available with a
fixed baud rate. Please contact Technical Support for more information.
Hardware Flow Control
The daughterboards in both Local and Remote Units have a series of jumpers which allow the
selection of alternative hardware flow control schemes across the CAT5 link. Most
applications will not require hardware flow control across the link, and therefore the flow
control jumpers are set to loopback by default and should not need adjustment.
The following diagrams show how the jumpers may be set for various flow control schemes.
Please contact Technical Support if you are unsure about serial port handshaking methods.
No hardware handshaking RTS/CTS and DTR/DSR
loopback - default
DTR/DSR Flow Control
Across CAT5 Link
RTS
CTS
DTR
DSR
RTS
CTS
DTR
DSR
RTS
CTS
DTR
DSR
RTS/CTS Loopback
DTR/DSR Flow Control
(Printer)
RTS/CTS Flow Control
Across CAT5 Link
(Serial mouse)
DTR/DSR Loopback
RTS/CTS Flow Control
RTS CTS
DTR
DSR
RTS CTS
DTR
DSR
RTS CTS
DTR
DSR
Figure 21 Jumper Settings on Flow Control block for various serial
port flow control and handshaking configurations (see
Figure 18 for location of jumper block)