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8
Cable compensation/VD2 sync/data setup
The COMP/VD2/DATA menu is displayed when you select it
in the SYSTEM menu.
In this menu, each camera is set up for cable compensa-
tion, VD2 sync and data communication ON/OFF.
1. Move the cursor to CAMERA IN. Select a camera input
channel with the [–] or [+] button. The default setting is
1CH.
The camera channel to be set up is selected and the
image of the channel is displayed in the background of
the setup menu.
Available channels:
1CH, 2CH, 3CH, 4CH
2. Move the cursor to COMP. Select a parameter with the
[–] or [+] button. The default setting is S.
The longer a coaxial cable is extended, the more the
video signals attenuate. This setting is to compensate
signal attenuation in 3 degrees. Select the best para-
meter that optimizes the displayed image on the moni-
tor while observing it.
S:
Short distance of less than 1 300 ft (400 m)
M:
Medium distance between 1 300 ft (400 m) and
2 300 ft (700 m)
L:
Long distance of less than 3 000 ft (900 m)
Note:
Distance is based on the assumption that RG-
59U, BELDEN 9259 or equivalent cable is used.
3. Move the cursor to VD2. Select a parameter with the [–]
or [+] button. The default setting is ON.
The VD2 sync signal is multiplexed onto the coaxial
cable and sent to the camera for synchronization. Refer
to the table.
ON:
VD2 synchronizes with the input to the VS/VD con-
nector when supplied, or with the internal sync
when VS/VD has no input.
THRU:
VD2 is supplied when a camera out connector
accepts external VD2 from the connected device.
No VD2 is supplied when no camera out connector
accepts external VD2.
OFF:
No VD2 is supplied to the camera.
4. Move the cursor to DATA. Select ON or OFF with the [–]
or [+] button. The default setting is ON.
Data communication with the selected camera channel
is enabled or disabled.
ON:
Enabled.
OFF:
Disabled.
5. Press the ESC to return to the SYSTEM menu.
8
VS/VD input setup
This setting specifies the input to the VS/VD INPUT terminal
on the rear of the unit.
1. Move the cursor to VS/VD INPUT. Select VS or VD with
the [–] or [+] button. The default setting is VD.
VD:
Set this when a “vertical drive” is input (4 V[p-p]).
VS:
Set this when “video and sync” are input
(1 V[p-p]).
COMP/VD2/DATA
CAMERA IN 1CH
COMP S
VD2 ON
DATA ON
VS/VD
IN signal
C.Sync
VS
Input setup
required
VS/VD OUT signal
MODE #1 to VD
VD: sync to
input
MODE #1 to THRU
C.Sync: looped
through
VBS
VS
VD: sync to
input
VBS: looped
through
VD
VD
VD: sync to
input
VD: looped
through
No input
VD
VD: internal
No output
Beside VS/VD OUT signal, the unit supplies VD2 sync to the cameras as follows.
VS/VD Input
Yes
Yes
No
No
External VD2 to
CAM OUT
Yes
No
Yes
No
VD2 set to ON
VD2 supplied to cameras
VD2 set to THRU
VD2 set to OFF
Sync to VS/VD
Sync to VS/VD
Sync to internal
Sync to internal
Sync to Ext VD2
Not supplied
Sync to Ext VD2
Not supplied
Not supplied
Not supplied
Not supplied
Not supplied
