DVS
‐
4040 Instruction Book
Revision 1
www.irtelectronics.com
Page 8 of 15
4040
‐
DVS_ib_Rev1.doc
Wire per crosspoint operation
In most cases, the BCD encoded remote control system offers the most satisfactory way of controlling one or more
switchers. There are however, situations where it is necessary to provide a wire per crosspoint access for control
and / or a line per crosspoint tally system. Both of these facilities may be made available on the DVS
‐
4040 in a
number of ways.
To change to WPX mode the WPX links should be installed on the PCB where indicated on the PCB overlay and all
of the "Universal" links should be removed or cut.
A momentary contact closure to ground on the relevant control input will now cause the switcher to operate in
the same way as it would have if the switch on the local control panel type CPS
‐
3050 had been depressed.
Pin connections are as follows:
PL 4
PL 5
1A
+12 Vdc out.
N/C.
1B Ground.
Ground.
2A
Switch 5 contact.
Switch 5 contact.
2B
Switch 4 contact.
Switch 4 contact.
3A
Switch 3 contact.
Switch 3 contact.
3B
Switch 2 contact.
Switch 2 contact.
4A
Switch 1 contact.
Switch 1 contact.
4B N/C.
Vert.
out
5A N/C.
N/C.
5B N/C.
N/C.
Note that no tally is available on the switch lines.
Location of links & user settings
The following location diagram is not to scale and is intended only to assist in finding the location of links and
other settings, which may need to be changed by the user during
Configuration
.
1B
1A
2B
3B
4B
5B
5A
2A
3A
4A
LK4
LK3
LK1 LK2
WPX
CONTROL
UNIVERSAL CONTROL
A
B
RV1
A
B
Plug-in
SNMP
