Daktronics AB-1600-1.5,2.5 - Manual (Page 23)

Electrical Installation
3-7
3.6 Interconnect of 2V Displays
The procedure for interconnecting 2V displays differs for Venus 1500 and Venus 4600
controlled displays. Information on both types is contained in this section. Refer to the
instructions appropriate to your display.
3.6.1 Venus 1500 Controlled Display
Reference Drawing: Interconnect, 2V ............................. Drawing A-104023
Signal is directed from the computer running the Venus 1500 software to the Venus
1500 based controller which is located in the independent (master) display only.
Signal is then relayed to the slave display through one 25 foot long 12 pin and one 25
foot long 25 pin interconnect cable. The cables are located in the slave display. The
cables are to be routed out through the back sheet of the slave display and into the
master display. The interconnect cable location is labeled on the back sheet.
Knockouts are provided in the back sheets to provide for easy installation of the 2.0
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conduit for routing the interconnect cables through. When placed back-to-back, the
displays can have a maximum separation of 5 feet if the displays are 144 pixels long.
For every 16 columns less in length, the displays can be 2 feet further apart.
To interconnect the displays:
1. The 20 pin interconnect cable is plugged into the input jack of the vertical
shift board located at the upper-left end (front view) of the slave display
(module 101).
2. Plug the other end of the 20 pin interconnect cable into the output jack (J5) of
the master/slave board (refer to Drawing A-104023) in the fan control
enclosure (A42) of the master display.
3. The 12 pin interconnect cable is attached to the 12 position terminal block
(TB31) in the fan control enclosure of the slave display (A42).
4. Plug the other end of the 12 pin interconnect cable into the output jack (J3) of
the master/slave board in the fan control enclosure (A42) of the master
display. The fan control enclosure location is labeled on the back sheet.
3.6.2 Serial Line Interface Controlled Display (Venus 4600)
Signal is directed from the Venus 4600 computer to a serial line interface in one of
the two displays. This display will then be considered the master. A fiber optic
interconnect harness is then required to route the signal from the master display serial
line interface to the serial line interface in the remaining display (slave). 50 feet of
fiber optic interconnect cable is provided in the slave display. The interconnect cable
location is labeled on the back sheet. Knockouts are provided in the back sheets to
provide for easy installation of conduit for routing the interconnect cable through.
When placed back-to-back, the displays can have a maximum separation of 25 feet if
the displays are 144 pixels long. For every 16 columns less in length, the displays
can be 2 feet further apart.