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Installation and Operation of the 9008 Chassis
The 9008 is designed for installation in a standard EIA 19” rack and requires 2RU (3.5 in. high, 2x1.75 in.) in
height. The following design criteria must be observed when installing the 9008 chassis in EIA 19”rack
systems.
1. The 9008 chassis mounting ears may be installed on either the card insertion side or the indicator panel
side.
2. The 9008 chassis is designed for use in an EIA 19” rack environment and is not designed for operation in
conditions where airflow through the sides of the chassis can be blocked. Refer to the System Layout and
Design Criteria section below for mounting and ventilation requirements.
3. The 9008 chassis will support its own weight when fully configured with cards, but may not be used to act
as a mechanical attachment location or support for other rack-mounted equipment above or below it. In
large multi-chassis systems, place heavier, fully loaded chassis at the bottom of chassis stacks and lighter
chassis at the top.
4. The chassis earth connection is maintained through the power supply power cord. It is the user’s
responsibility to insure the power supply has the proper, grounded power supply cord connected for
operation. Refer to the safety pages in the front of the manual and the power supply manuals for details on
earthing and system grounds.
Unused slots in the chassis should be covered with the available 9996 single blank and/or 9998 triple blank
slot covers to meet airflow, signal immunity, and fire enclosure safety design criteria.
System Layout and Design Criteria
When configuring TKH Security USA Series 9000 chassis and cards into a system, there are several important
design criteria that should be followed to insure trouble free operations and regulatory compliance. These fall
into two major categories.
1. Cooling and Airflow Criteria
2. Wiring Criteria
Cooling and Airflow Criteria
The 9008 chassis design requires natural convection cooling air to enter the fan side of the chassis and exit the
opposite side of the chassis. The chassis should be mounted in a manner that provides a minimum of
1.25 inches of free space on both sides of the chassis.
Single chassis systems should be mounted in such a way as to insure that the other equipment to the sides of the
chassis do not interfere with the airflow through and around the chassis. In extremely hot locations or locations
where there is poor natural ventilation, install an external fan tray in the 19” rack system to provide air circulation
within the rack enclosure. This will help to maintain acceptable operating temperatures.
Typically, the 9008 chassis will be the only TKH Security USA chassis installed in a 19-inch rack. If more than eight
slots are required for rack mounting Series 9000 cards, the 9002 chassis and the available 9030B or 9030BF power
supplies should be used. Refer to the 9002 manual or consult with TKH Security USA factory support engineers for
more details.