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Serial Data Cables
CM-4000 System
Controller
(bus controller)
Ground
Receive A (-)
Receive B (+)
Transmit B (+)
Tr ansmit A (-)
JUPITER L-S and LCD Series Control Panel Instruction Manual
The RS-422 cables that are used to connect the AccuSwitch System Control-
lers to the L-S and LCD Control panels consist of a 4-conductor (plus
ground) cable. The maximum length per bus, at 115k Baud, is 610 meters
(2000 feet).
The rear panel Serial Data Cable connectors on the CM-4400 or CM-4000
and Control panels are 9-pin D, female. The control panel connectors are
arranged for loop-through wiring and no termination is required. These
connectors are ESbus compatible, however, it should be noted that the
Thomson serial data cables use only 5 of the 9 pins that are described in the
ESbus specification.
The following cables are available, with 9-pin D male connectors installed,
already made from Grass Valley (VDE cables include ferrite cores):
Table 2.
1 meter (3.3 ft.)
2 meters (6.6 ft.)
4 meters (13.1 ft.)
For those who wish to prepare their own cables, the pin-outs are shown in
Figure
31. The cable itself should be Belden 8723 or equivalent.
Details concerning ferrite cores are given in
Figure 31. Serial data cable wiring. Reference: "Assembly, BCS-3000 Serial Data Cable," Grass
Valley drawing no. 01-041600-TAB.
Shield (drain)
1
Green
2
White
7
Red
3
Black
8
Ferrite core
P1
DB9P
(male)
8 meters (26.2 ft.)
16 meters (52.5 ft.)
32 meters (105 ft.)
Ferrite core
Green
White
Red
Black
Individually shielded, twisted pairs
Serial Data Cables
Figure
32.
Control panel or
VTR
(tributary)
1
Frame ground
Tr ansmit A (-)
2
7
Transmit B (+)
3
Receive B (+)
8
Receive A (-)
P2
DB9P
(male)
69
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