Extron Electronics CTL101 User Manual
Page 18
14
CTL101 Operation Manual - V1.3 03/22/02
©2002 - INLINE, Inc.
Dipswitch Bank #2:
Dipswitches 1, 2, 3, 4:
1 & 2 in "1" position
3 & 4 in "0" position
Contact Closure Port +5V Enable / Disable:
Enabled (CTL101 provides power)
Contact Closure Port Ground Enabled / Disabled: Enabled (CTL101 provides power)
Baud Rate Override (Cycle power off / on to
activate new setting):
Normal
Dipswitch Bank #1
Dipswitch
Function
Setting
1, 2 & 3
Input Port Serial Mode
1 RS-485 / RS-422
0 RS-232*
4, 5 & 6
Output Port Serial Mode
1 RS-485 / RS-422
0 RS-232*
Dipswitch Bank #2
Dipswitch
Function
Setting
1
Contact Closure Port
+5V Enable / Disable
1 Enable*
0 Disable
2
Contact Closure Port
Ground Enable / Disable
1 Enable*
0 Disable
3 Reserved
4
Baud Rate Override
(Cycle power off / on to
activate new setting)
1 9600 Baud
Group 1
0 Normal*
* Factory Default
DIPSWITCH BANK #1
Dipswitches 1, 2 and 3 control the Input Port, while 4, 5 and 6 control the Output Port. The Input
/ Output port will operate in RS-232 mode when all six dipswitches are in the "0" position
(default), and in the RS-422 / RS-485 mode when all six dipswitches are in the "1" position.
Switching pairs 2 & 3 and 5 & 6 will terminate the receive & transmit signals (respectively) at
their ports.
DIPSWITCH BANK #2
In most cases, the contact closure ports use internal power from the CTL101 to sense changes
(switches 1 & 2 are enabled). Users can completely isolate the remote contacts & wiring from
the CTL101 by incorporating an external +5 volt power supply into the system (see the CTL101
Contact Closure Inputs Diagrams on page 6). In such applications, the internal power supply of
the CTL101 must be disconnected from the contact closure ports by disabling dipswitches 1 & 2.
When dipswitch #4 is in the "0" position (normal), the CTL101 automatically recalls the last
configuration at power-up. Users can override the last settings and power-up the unit at factory
default (9600 baud) by setting the switch to the "1" position (override). Note that the factory
default also sets the Code End / Menu Call character to an asterisk (*).