Mediastar 770 - User Manual

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200-2320 v5

The MediaStar 770 rack is a 19” 3U enclosure

that is used to house any combination of

MediaStar ‘blade’ based headend processor

modules (supplied separately).

The rack can be supplied with either a single ‘pluggable’

mains power supply (770), or a dual redundant ‘hot

swap’ power supply (770-DR). There are 9 ‘blade’

positions available in the 770 rack and 8 ‘blade’

positions in the 770-DR. The 770 rack requires a single

100 – 240V mains source, and the 770-DR requires

two mains sources, preferably on independent circuits

for redundancy.

In both racks, the PSU module(s) convert electrical

mains input voltage to low voltage DC power that is

distributed to each of the ‘blade’ processor modules

tted in the rack. It also provides forced air cooling

for the whole 770 rack enclosure.

The single PSU module has front panel screw xings

so that in the event of a failure, it can be quickly

swapped out for another 771 PSU unit. The dual

redundant PSU has two independent PSU modules,

each individually capable of powering the entire rack,

so in the event of a PSU failure the other power supply

will automatically take over without disruption of the

‘blade’ processor modules.

In all power supplies, the output power rails and fans

are monitored. If any problems are detected, the front

panel visible indicators will highlight the problem, and

where a 79x ‘blade’ is present in the rack, it will send a

warning to the Media Manager administration system

and optionally a corporate SNMP monitoring system.

It is possible to upgrade any existing single PSU 770

rack shipped since January 2011 with dual redundant

power supplies. To do this you will need to purchase the

770-DR-UG kit, which will provide you with a new power

supply card-frame and two 726 dual redundant PSUs.

Spare power supply modules can be ordered separately

from your reseller or Cabletime (771-RP or 726-RP).

When installing the 770 rack, please be aware that RF,

HDMI, signal cables and mains are routed to the rear,

and network and other communications cables are

plugged into the front of the ‘blades’.

What’s in the box:

• 770 rack including a single 771 PSU, or

770-DR rack including two 726 PSU modules

• AC mains power cable(s)

• Rack mounting screw set

MediaStar 770 Rack Installation Guide

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The MediaStar 770 Rack is a 19-inch, 3U enclosure designed to house various MediaStar 'blade' based headend processor modules. This rack system provides a flexible and scalable solution for managing and distributing video and communication signals within a commercial environment.

Function Description:

The primary function of the MediaStar 770 Rack is to provide a robust and organized housing for MediaStar processor modules, referred to as 'blades'. It supplies power to these modules and facilitates their integration into a larger system. The rack can be configured with either a single 'pluggable' mains power supply (770) or a dual redundant 'hot swap' power supply (770-DR). The single PSU 770 rack offers nine blade positions, while the dual redundant 770-DR rack provides eight blade positions.

The power supply module(s) convert incoming AC mains voltage (100-240 VAC, 2.2-1A, 50/60 Hz) into low voltage DC power, which is then distributed to each installed blade. In addition to power conversion, the PSU modules incorporate forced air cooling to maintain optimal operating temperatures within the entire rack enclosure.

The rack is designed to support a wide range of MediaStar processor modules, including:

DVB-T/T2/C HD-SD Encoders
DVB-S2 LAN-Casters
HDMI HD Encoders
ATSC/QAM Multi-Tuners
IP Re-Casters
IP Multi-Mux modules

These modules allow for various functionalities such as encoding, casting, tuning, and multiplexing of different signal types (RF, HDMI, IP, etc.). The modular design allows users to customize the rack's capabilities by selecting and installing the specific blades required for their application.

Important Technical Specifications:

Dimensions: 19-inch rack mounting, 3U high.
Power Input:
- 100-240 VAC, 2.2 - 1A, 50/60 Hz
- 200 Watts via a single IEC mains connector for single PSU 770 racks.
- 200 Watts from either one of two IEC mains connectors for dual redundant 770-DR racks.
- Mains supplies should be independent for full redundant operation (for 770-DR).
Enclosure Power Dissipation: 200 watts maximum, dependent on the type of 'blades' fitted.
External LNB Power Drain from DVB-S2 'Blades':
- 3A total
- 450mA per 774 or 784 DVB-S2 'blade'.
Weight:
- 770 (single PSU): 3.6 Kg without processor modules, 8.3 Kg with 9 processor modules.
- 770-DR (dual redundant PSU): 4.1 Kg without processor modules, 8.3 Kg with 8 processor modules.
Environmental: Operating temperature range of 0-40°C.
Approvals: FCC Part 15, CE, CB.
Safety Standards: IEC 60950-1, EN 60950-1, UL 60950-1, CAN/CSA C22.2 No. 60950-1, IEC 62368-1, EN 62368-1, UL 62368-1, CSA/CAN C22.2 No. 62368-1-14.
EMC Standards: EN55032, EN55024, EN61000-3-2, EN61000-3-3.

Usage Features:

Modular Design: The rack accommodates various MediaStar processor 'blades', allowing for flexible system configuration and expansion.
Power Supply Options: Available with a single power supply (770) or a dual redundant hot-swap power supply (770-DR) for enhanced reliability. The dual redundant system ensures continuous operation even if one PSU fails, as the other automatically takes over.
Hot-Swappable Blades: Processor modules can be inserted or removed with the rack power on or off, providing flexibility during installation and maintenance.
Indicator Lights: Front panel indicators on the power supply module(s) provide visual status:
- 'POWER' (blue): Indicates the power supply is working within voltage limits. Flashes blue on a 770-DR if no mains input or total PSU failure.
- 'FAN' (green): Indicates fans are operating correctly. Turns red if fans are stalled or turning too slowly.
- 'FAULT' (off normally): Illuminates red if there is a problem with FAN operation or PSU DC output voltages.
Remote Monitoring: When a 79x 'blade' is present, the rack can send warnings to the Media Manager administration system and optionally to a corporate SNMP monitoring system, facilitating proactive issue detection.
Easy Installation: The rack is designed for standard 19-inch rack mounting and comes with a screw set for secure installation.
Cable Management: RF, HDMI, signal, and mains cables are routed to the rear of the unit, while network and other communications cables plug into the front of the 'blades', aiding in organized cable management.

Maintenance Features:

Power Supply Replacement:
- Single PSU (770): The 771 PSU module has front panel screw fixings for quick replacement. However, replacing a 771 PSU will power down all 'blades' in the rack, leading to a temporary loss of services. This should be scheduled outside normal working hours or with prior notification.
- Dual Redundant PSU (770-DR): The 726 PSU modules are hot-swappable, allowing a single module to be replaced without affecting the operation of the 'blades' in the rack.
Upgrade Capability: Existing single PSU 770 racks (shipped since January 2011) can be upgraded to dual redundant power supplies using the 770-DR-UG kit, which includes a new power supply card-frame and two 726 dual redundant PSUs.
Blade Installation/Removal:
- Blades are secured by top and bottom thumbscrew fasteners for easy installation and removal.
- When removing a blade, all connection cables must be disconnected from the front and rear.
- The location LED flashing feature can help identify the correct unit from the rear.
- Discarded rear panel aperture covers should be collected, and the original blue front panel cover (or adhesive tape) should be used to cover the aperture to maintain cooling airflow when a blade is removed.
Cooling System: Integrated forced air cooling ensures optimal operating temperatures for all modules. Ventilation and fan grills must remain unobstructed.
Safety Precautions: Emphasizes the importance of anti-static precautions when handling 'blades' and the need for qualified service personnel for power supply replacements.
Atmospheric Electricity Protection: Recommends best practices for protecting against lightning strikes and atmospheric electrical discharge, including using coaxial over-voltage protection units and bonding masts/antennas to building protective earth. The AC power cord's safety earth alone is insufficient for this protection.

Mediastar 770 Specifications

General

Brand	Mediastar
Model	770
Category	Chassis
Language	English