INSTALLATION
page 5
INSTALLATION
Rack mounting
The MVS3 is packaged in a 5 1/4" H x 14" (13.5 x 35 cm) deep rack mount chassis and a
8 3/4" (22.25 cm) control panel. The chassis is equipped with rear supports which should
be used to support the weight of interconnection cables:
The control panel may be installed in 8 3/4" (22.25 cm) of rack space or desktop mounted
with the support sides.
Battery Backup
Because stored-sequence programming and all calibration data is stored in battery-
powered memory, several precautions should be observed to avoid accidental memory
loss:
1. The CPU (lower) card may be removed without memory loss, but do not set it on a
metallic surface.
2. Avoid careless probing of memory and computer signals.
3. Two DL1/3N Duracell batteries are used, wired in parallel. These are mounted on the
CPU card. They should be changed at two-year intervals, and replaced ONE AT A
TIME so no voltage interruption results. If the unit is continuously powered, the
batteries can be changed every five years. Battery voltage can be measured between
chassis ground and D6/D7 anodes, just above batteries. Initial voltage is about 3.2 v,
and batteries measuring less than 3.0 v should be replaced.
Power
The MVS3 uses approximately 85 watts of AC power at 110 or 220 volts. To change
from the standard 110 configuration to 220 volt input, remove the AC cable and remove
the left side plate of the rack chassis to gain access to the switching power supply. A
jumper must be moved from the 110 to the 220v position for European operation.
Sync
A genlock sync generator is built-in to the unit as a standard feature. The genlock input
can accept any NTSC (or PAL) video signal. With the genlock card installed, Command
6 can be used to choose between subcarrier, internal, and genlock modes.
