GRASS VALLEY JUPITER CONTROL PANEL L32 -, Инструкция по эксплуатации

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JUPITER L-S and LCD Series Control Panel Instruction Manual 71
Serial Data Cables
Serial Data Cables
The RS-422 cables that are used to connect the CM-4000 System Controllers
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-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 specifi-
cation.
The following cables are available, with 9-pin D male connectors installed,
already made from Grass Valley (VDE cables include ferrite cores):
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 32 .
Figure 31. Serial data cable wiring. Reference: “Assembly, BCS-3000 Serial Data Cable,” Grass
Valley drawing no. 01-041600-TAB.
Table 2.
1 meter (3.3 ft.) 8 meters (26.2 ft.)
2 meters (6.6 ft.) 16 meters (52.5 ft.)
4 meters (13.1 ft.) 32 meters (105 ft.)
1
2
3
7
8
1
2
8
P1
DB9P
(male)
Shield (drain)
Green
Black
White
P2
DB9P
(male)
3
7
Red
Ground
CM-4000 System
Controller
(bus controller)
Control panel or
VTR
(tributary)
Receive A (-)
Tr ansmit A (-)
Receive B (+)
Transmit B (+)
Transmit B (+)
Tr ansmit A (-)
Receive B (+)
Receive A (-)
Frame ground
Individually shielded, twisted pairs
Ferrite core
Ferrite core
Green
Black
White
Red
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