Pioneer PDP-607CMX Reference Manual page 6

Under the connection conditions shown below, use a combination cable for up to 16 panels.
1 Length of RS-232C cable connecting PC to Plasma Display: 5 m
Conditions:
2 Combination cable length: 5 m each
3 Wire specifications for linking cable: Mini Din 6-pin straight (7 strand cable)
Note
For details on the number of displays that can be connected in series using the video OUT terminal (INPUT1, 4), refer to
section 2.3, "Controls and Connectors" (pg. 11).
PC
RS-232C
5m
Combination cable 5m
For one strand, suitable for AWG28:
Cross-section area = 0.08 mm
≠
7 strands × π r = 7 × 3.14 × 0.06
2
Plasma Display
1
OUT
IN
2
OUT
IN
3
OUT
IN
#
RS-232C Adjustment
2
≠ 0.08 mm
2 2
= 0.079 mm
6
2