Black Box ACS235A - Manual (Page 76)

25
CHAPTER 4: Configuring the ACS236A
Figure 4-2. Setting video-handling jumpers JP2 and JP10.
4.1.2 L OCAL G AIN -C ONTROL J UMPER JP3
If you’ll be using automatic gain control (AGC) in your Extender system, leave the
jumper ON the JP3 jumper posts. (We recommend this factory-default setting.)
But if you’ll be controlling the gain manually (see Section 5.2), remove the jumper
from these posts, as shown in Figure 4-3. (Whichever way you set this jumper, make
sure that jumper JP8 in the Remote Module is set the same way.)
Figure 4-3. Setting gain-control jumper JP3.
4.1.3 C
ORE
-D
IAMETER
J
UMPER
JP5
If you’ll be using fiberoptic cable with a 62.5/125-µm diameter in your Extender
system, leave the JP5 jumper posts empty. (This is the factory-default setting.) But
if you’ll be using 50/125-µm-diameter cable, install a jumper on these posts, as
shown in Figure 4-4. The Extender does not work with fiber cables of any other
diameter.
Figure 4-4. Setting core-diameter jumper JP5.
JP2
JP10
Removed Removed
Removed Installed
Installed
Installed
VGA in, VGA out
(factory default)
VGA in, Sun out Sun in,
Sun or VGA out
JP3
Removed Installed
With AGC
(factory default)
Without AGC
JP5
Installed Removed
62.5/125-µm
(factory default)
50/125-µm