CONNECTIONS
Data Line Connection
The DATA LINE is run from the DATA LINE OUT BNC on
the matrix bay to the top DATA LINE IN BNC on the rear
panel of the Code Converter. (Older 1995 systems used the
term LAN IN/OUT). Use a good grade RG-59 video cable
(Belden 8241 or equivalent). The DATA LINE OUT BNC of
this pair must be fitted with a termination 75 ohm BNC
terminator or if used to loop to other DATA LINE-controlled
equipment, terminated at the end of the run.
The LED labeled CODE 1 will light when "good" code is
received on DATA LINE ONE. The DATA LINE 2 BNC pair
is used in systems which contain more than 64 monitors or in
video switching systems using more than one Megapower CPU
(See Figure 1).
Control Code Line Connections
The control line connections to Control Code receivers must be
shielded 2-wire twisted pair (Belden 8760, for plenum, use
Belden 88760 or equivalent).
Four groups of four, 12-conductor connectors on the rear panel
provide a maximum of 64 Control Code lines. These
connectors are supplied with mating screw terminal connectors
for ease of connecting the code lines to the 2091.
The 6-position DIP switches, associated with each group of
four connectors, are shipped with all switches in the the OFF
position. In the OFF state, all receivers in a system will
respond to cameras 1-64. If one 2091 is to control more than
one block of cameras (a block contains 64 cameras) see Table
1 to set the dip switches.
Table 1
CODE GENERATOR/DISTRIBUTION UNIT
CAMERA SELECT GROUP
0 = OFF, 1 = ON
SELECT
P/T GROUP
A B C D E F
Cam 1-64
0
0
0
0
0
0
Cam 65-128
0
0
0
0
0
1
Cam 129-192
0
0
0
0
1
0
Cam 193-256
0
0
0
0
1
1
Cam 257-320
0
0
0
1
0
0
Cam 321-384
0
0
0
1
0
1
Cam 385-448
0
0
0
1
1
0
Cam 449-512
0
0
0
1
1
1
Cam 513-576
0
0
1
0
0
0
Cam 577-640
0
0
1
0
0
1
Cam 641-704
0
0
1
0
1
0
Cam 705-768
0
0
1
0
1
1
Cam 769-832
0
0
1
1
0
0
Cam 833-896
0
0
1
1
0
1
Cam 897-960
0
0
1
1
1
0
Cam 961-1024
0
0
1
1
1
1
Each 12-pin connector provides black (B), white (W), and
shield (S) pins for four individual Control Code lines.
Insert the three wires of a control code line into the slots of the
rear panel mating connectors and tighten the hold-down
screws. When all lines have been connected, insert the 12-pin
connectors into the rear panel mating connectors. See Figure 2.
Figure 1 - Control Code Generator Rear Panel
CODE
1
2
PWR
SELECT
DATA LINE
IN
OUT
IN
OUT
1
2
+
B W S B W S B W S B W S
CONNECTIONS
2
Use NEC Class 2 wiring only for all external
pin connections. The wiring shall also conform
with all local codes.
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