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Chapter 2: Overview: High-Density Media Converter System II
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2. Overview: About the High-Density Media Converter System II
2.1 The 20-Slot Rackmount Chassis
The 20-Slot Rackmount Chassis series is a modular chassis platform designed
for use with Black Box Simple Network Management Protocol (SNMP)
manageable series of modules. The 20-Slot Rackmount Chassis is a 3U high,
Rackmountable chassis that features 20 slots for installing application series
modules plus an additional slot for installing an SNMP Management Module.
Some 20-Slot Rackmount Chassis models are capable of redundant power
supply modules. Power supply modules are user-replaceable and hot-
swappable.
20-Slot Rackmount Chassis Features
The 20-Slot Rackmount Chassis models are available in dual AC, dual DC and
ACDC versions. It offers features such as end-user replaceable power supply
modules, temperature monitoring, Last Gasp, and an Alarm Reset Button.
2.2 The 6-Slot Rackmount/Desktop Chassis
The 6-Slot Rackmount/Desktop Chassis is a modular chassis platform
designed for use with Black Box Simple Network Management Protocol
(SNMP) manageable series of modules. The 6-Slot Rackmount/Desktop
Chassis is 1U high, rackmountable, and supports optional redundant power
supply modules, as well as an SNMP Management Module.
6-Slot Rackmount/Desktop Chassis Features
The 6-Slot Rackmount/Desktop Chassis offers a line of models including single
AC, single DC, dual AC, and Dual DC. It offers features such as redundant
power supply modules, temperature monitoring, Last Gasp, and an Alarm
Reset Button.
Chapter 3: Install the High-Density Media Converter System II
LMC5208A 877-877-2269 | blackbox.com Page 21
2. Make sure to leave adequate space on the sides of the unit to
accommodate cooling.
3. If mounting on a Rackmount shelf, align holes of the chassis to the shelf
and secure with screws.
Rackmounting requires a Rackmount shelf for mounting up to two units side by
side. The Rackmount shelf is sold separately. To purchase the Rackmount
shelf (part number (LMC5238); visit the Black Box Product Accessories page:
http://www.blackbox.com/Store/Results.aspx/search-LMC5238%5e%5e%5e/p-0
4. Attach the cables between the chassis and the device that will be
interconnected, and then plug the unit into a reliable, filtered power source.
5. If mounting the chassis on a wall, place two #10 panhead screws (not
supplied) on the wall according to the distance of the holes on the chassis,
and then hang the unit on the screws.
6. All versions are intended for use in a Restricted Access Location (RAL).
7. A readily accessible disconnect device shall be incorporated in the building
installation wiring.
8. A suitable listed circuit breaker shall be provided in the building installation
as the unit’s disconnect device. The branch circuit rating should be 15A,
and should be listed on the circuit breaker.
3.3.1 DC Power Wiring, Replacing Power Supply and Fans
DC Power Supply Wiring Instructions
The following image shows the wiring configuration for a 48-VDC power supply
in a negative ground system application. For positive ground system
applications remove the chassis ground shorting jumper and connect it
between the positive terminal and the chassis ground terminal. Alternatively,
the chassis grounding jumper can be eliminated and the chassis ground
connected at the power source. The ground terminal and the negative terminal
are not connected inside the iMediaChassis/3.
DC Power Supply
Negative ground system configuration (default position)