Page 43
7.
Cabling Specifications
This chapter details the cabling specifications. Many cables are standard computer
cables and are not detailed here.
These specifications are a guide only, and depend u pon the exact equipment used.
7.1
Monitor cables
7.1.1
RGB Monitor
RGB monitors will generally have 5 co-ax type connectors - one each for RED,
GREEN, BLUE, HORIZONTAL SYNC, and VERTICAL SYNC. Each needs to
be connected to the 15 pin VGA connector as detailed below. Note that some
monitors may not work with the signal levels generated from a VGA card. Good
quality RGB multicore cabling will give a very good picture over the length of a
bowling lane. Some cheaper types may give acceptable results.
15 Pin Male VGA connector
1 – RED
2 – GREEN
3 – BLUE
6 – Red Return
7 – Green Return
8 – Blue Return
13 – Horizontal Sync
14 – Vertical Sync
5 & 10 – ground for sync
7.1.2
SKART Monitor
The connections for a monitor or TV fitted with a SKART or PERI-TV connector
are given below. Note also the connection from P12 on the ALS board. This
connector provides a 12V signal that is used to switch the monitors between TV
and the score grid.
4 Core RGB cable should be used. One core each for R,G,B and sync. The resistors
and diodes can be mounted in the VGA plug body. The sync core will then connect
to one end of these components. The sync shield should be ground (pins 5&10).
Note the orientation of the diodes, stripe to the VGA plug.
Figure eight cable can be used for the 12V swit ching signal.
