
Page 5 Page 6
Dying Gasp Trap
The 8241-1, 8241-2, 8243-1, 8243-2 and 8243-9 chassis feature Dying Gasp Trap, which
reports loss of power input or chassis power supply failure. This feature requires an iConverter
management module be installed in the chassis. When power failure occurs, the chassis
reserves enough power to keep the installed module running in order to send a nal SNMP
alert to the management software.
Wall and Rack Mounting
The 1-Module chassis can be wall/rack mounted by attaching the optional wall/rack mount
brackets (8249-0). A 19” Rack Mount Shelf (8260-0) is available to install three 1-Module
chassis.
The operating temperature of this equipment is 0 to 50 degrees C or -40 to 60 degrees C
depending on the model number. If installed in a closed or multi-unit rack assembly, the
operating ambient temperature of the rack must not exceed the maximum rated temperature
for the chassis used.
Installation of the equipment should be such that the air ow in the front and back of the unit
is not compromised or restricted.
Installing this equipment into a rack in such a way as to make it unstable may cause injury
or death. Always make sure that the rack you are installing this equipment into is properly
secured, stable, balanced and designed to carry the weight and weight distribution of this
equipment.
Never use this equipment to carry any weight except its own. Never use it as a shelf to
support the weight of other equipment.
Installing Module
Carefully slide the module into the open slot in the chassis. Align the module with the
installation guides and ensure that the module is rmly seated against the backplane. Secure
the module by fastening the front panel thumbscrew (push in and turn clockwise to tighten)
to the chassis front.
AC Powered Chassis and Cabling
Secure the ground wire to the ground screw (located on the rear of the chassis).
To power the module using the included AC power adapter, route the power cord through the
provided strain relief (depending on the model) for additional support. Connect the barrel
connector at the end of the wire on the AC/DC adapter to the barrel connector on the module.
Connect the AC/DC adapter to the AC outlet.
Conrm that the unit has powered up properly by checking the Power LED located on the front
of the installed module. Use only the supplied AC/DC power adapter to power the chassis.
NEVER ATTEMPT TO OPEN THE CHASSIS OR
SERVICE THE POWER SUPPLY. OPENING THE
CHASSIS MAY CAUSE SERIOUS INJURYOR DEATH.
THERE ARE NO USER REPLACEABLE OR
SERVICEABLE PARTS IN THIS UNIT.
WARNING!!!
NOTE: The 8242-x and 8243-x models use a different AD/DC power adapter than the
8240-x and 8241-x models. The DC barrel connector on the 8242-x and 8243-x is a
2.1mm center connector and supplies a nominal 48VDC. The DC barrel connector
on the 8240-x and 8241-x is a 2.5mm center connector and supplies a nominal 9VDC.
If installing with the NEBS Mounting Kit for 8242-x and 8243-x models, secure the grounding
wire to the ground lug. See the gure below for the location of the grounding lug.
Rear of 1-Module Power Chassis,
Models 8242-x and 8243-x with AC Power Connector
DC Powered Chassis and Cabling
The over current protection for the connection with centralized DC shall be provided in the
building installation and shall be a UL listed breaker rated at 20 Amps, and installed per the
National Electrical Code, ANSI/NFPA-70.
This equipment requires 20-60VDC/0.6Amp rated power. Appropriate overloading protection
should be provided on the DC power source outlets utilized.
NOTE: The DC power battery return (BR) terminal or positive terminal must be
grounded at the source end (power feed or DC mains power end). The DC power BR
input terminal is not connected to the equipment frame (chassis), so it is congured
as DC-I according to the GR-1089-CORE, Issue 4 (sec 9.8.3) denitions.
WARNING: OnlyaDC power source that complies with
safety extra low voltage (SELV) requirements can be
connected to the DC-input power supply.
WARNING REGARDING EARTHING GROUND:
o
o
o
o
This equipment shall be connected to the DC supply system
earthing electrode conductor or to a bonding jumper from an
earthing terminal bar or bus to which the DC supply system
earthing electrode is connected.
This equipment shall be located in the same immediate area
(such as adjacent cabinets) as any other equipment that has
a connection between the earthed conductor of the same DC
supply circuit and the earthing conductor, and also the point
of earthing of the DC system. The DC system shall not be
earthed elsewhere.
The DC supply source is to be located within the same
premises as this equipment.
There shall be no switching or disconnecting devices in the
earthed circuit conductor between the DC source and the
earthing electrode conductor.
Locate the DC circuit breaker and switch the circuit breaker to the OFF position.