Serial Data Cables - GRASS VALLEY L-S series Instruction Manual

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 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):
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
2 Tr ansmit A (-)
7 Transmit B (+)
3 Receive B (+)
8 Receive A (-)
P2
DB9P
(male)
71