USL, Inc.
JSD-80 Instruction Manual
Page 9
3rd Edition. February, 2006
Section 2: Installation
2.1 System Hardware Mounting
and Grounding
The JSD-80 is designed to mount in a stan-
dard 19" rack, and is two standard rack
spaces (3-1/2") high. We recommend vented
panels above and below whenever space
permits. Mounting the unit immediately
above a major heat-producing component
(such as a power amplifi er) is not recom-
mended. The JSD-80 includes a three-prong
grounding plug and a three-wire power
cord to accommodate a safe ground path
from the chassis to the electrical system
ground. Defeating this ground by removing
the ground prong is not recommended.
2.2 System Cooling and
Ventilation
Important
Care should be taken to insure the JSD-80
has adequate ventilation for cooling during
operation. It is recommended that one rack
space below the JSD-80 is left open to allow
outside air circulation through the unit. A
ventilation panel, USL, Inc. part number
VP-1, is recommended for projection booths
where the normal ambient temperature
exceeds specified equipment operating
temperatures listed in the safety section
of this manual. Also, it is recommended
that equipment with no more than a nine-
inch depth be mounted directly above the
JSD-80 to insure adequate airfl ow through
the unit’s rear ventillation slots.
