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MMX 32 VGA MTP • Installation and Operation 7
Pre-Peaking and Sync Selection
f Pre-peaking selection — To select the correct peaking option to compensate
for signal loss over long cable runs, set the DIP switch position as shown in the
table below:
Pre-peaking settings table
Video
Format
Pre-Peak
off
Pre-Peak
on
Max. distance
(high quality)
Max. distance
(variable quality)
Composite,
S-video,
Component
800 ft.
(245 m)
1000 ft.
(300 m)
640 x 480
<300 ft.
(90 m)
<350 ft.
(105 m)
700 ft.
(215 m)
750 ft.
(240 m)
800 x 600
<300 ft.
(90 m)
<350 ft.
(105 m)
550 ft.
(165 m)
650 ft.
(200 m)
1024 x 768
<300 ft.
(90 m)
<350 ft.
(105 m)
500 ft.
(150 m)
600 ft.
(185 m)
1280 x 1024
<250 ft.
(75 m)
<300 ft.
(90 m)
350 ft.
(105 m)
450 ft..
(135 m)
1600 x 1200
<250 ft.
(75 m)
<300 ft.
(90 m)
300 ft.
(90 m)
450 ft.
(135 m)
Sync selection — To select either bi-level sync or tri-level sync on output 2, set the sync DIP
switch to the desired setting.
NOTE: Set when transmitting tri-level sync component video.
Remote Control Connections
g Contact closure connectors — These two 5-pole captive screw connectors provide
remote contact closure control of outputs 1 and 2 by connecting an Extron MMX 32
AAP (part number 70-277-11) or MMX 32 MAAP (part number 70-277-12, or -22)
contact closure remote control panel. Connect the 5 V and Gnd (-) 2-pole captive screw
connector on the AAP or MAAP to either of these connectors. See “Remote Control”
on page 12 for more information.
h RS-232 connector — Connect an RS-232 control module to this 3-pole captive screw
connector to allow remote control using the Extron Simple Instruction Set (SIS™) or the
Extron Universal Switcher Control Program.
SYNC - TRI
PRE PEAK - ON
BI
OFF