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Фрагмент инструкции
2. 3. 4. 5. 6. MH10 Rear Panel . . . . . . Rear Pan el Comp onents 11 Power On/Off Switch IEC Power Inlet Fuse Holder Backup DC Power Inlet, 4-pin XLR Manual Mode configuration selector button Manual Mode configuration LED A-Net ports, SFP connectors, 2x A-Net ports, EtherCon connectors, 8x 1. 2. 3. 4. 5. 6. 7. 8. MH10f Rear Panel . . . . . . . . Front Panel Features This section describes the features and functions of all front-panel components of the MH10 and MH10f Merger Hubs. Network Mode Indicator The mode LED lights to display the current network mode, which can be set to Auto or Manual at the network’s Control Master. When the Pro64 network is operating in Auto Mode, the red Auto LED will be lit. In Auto Mode, no user settings are available on the MH10/MH10f; all ten A-Net ports function identically. It does not matter which rear-panel A-Net port is used when connecting Pro64 devices to the network. One network mode is always selected. Here, the network is in Auto Mode; the Auto LED is lit. In Manual Mode, the user has the option of directing A-Net data to either or both A-Net ports on input modules that are part of the network. Once the network has been set to operate in Manual Mode, the red Manual LED and one of the yellow configuration LEDs will be lit on the MH10/ MH10f. By choosing one of the three Manual Mode configurations, A-Net digital streams can be routed in different ways to accomplish a variety of audio distribution tasks. (One configuration is always selected by default.) Three Manual Mode configurations are available: • A Merge All — Merges all incoming A-Net data and distributes this merged stream of data to all 10 ports (this is the same as Auto Mode). • B Merge 1-9 — Merges incoming A-Net data from ports 1-9 to a single stream and distributes this merged Pro64 stream to port 10 only. Pro64 data streams arriving at port 10 are distributed FroNt PANel FeAtures out to ports 1-9. • C Merge 1-8 — Merges the incoming A-Net data from ports 1-8 to one stream and distributes the merged data to ports 8-10. A redundant data path is created when either two MH10 (Cat-5e) or two MH10f (fiber) units are connected together via ports 9 and 10. Port 8 is special when configuration C is used. It inputs data to the Merger function and outputs the complete merged 64-channel stream, providing a local digital split of all inputs. Incoming A-Net data streams from ports 9 and 10 are distributed to ports 1-7. A-Net Port LEDs Valid A-Net data connected to any of the rear-panel A-Net ports is indicated by a lit A-Net activity LED on the front panel. The activity LED lights to indicate the presence of a valid A-Net stream. Ports 4, 6, 7, and 9 are shown as active. A-Net LED The blue LED found within the A-Net logo functions as the network activity indicator. When a module is powered up, its A-Net LED will flash while a request to enter the network is sent to and then processed by the Control Master. Once a module is enumerated and is part of the Pro64 network, the blue A-Net LED will light solidly. The blue A-Net LED is also used during the firmware update process. Firmware updates on an MH10/MH10f must be initiated from another Pro64 device which has VDC capability. FroNt PANel FeAtures The A-Net LED lights when a Pro64 device is active on a Pro64 network. Managed Mode LED Managed Mode puts the network under control of a computer for firmware updates, system monitoring, etc. Managed Mode can only be entered from the network’s Control Master. When the network is placed under control of a computer, the Managed LED will light on all modules in the network. The Managed LED is for information only. No user settings are available on the MH10/MH10f for Managed Mode. 4 FroNt PANel FeAtures Rear Panel Features All MH10/MH10f rear-panel features and functions are described in this section. Individual differences between the MH10 and MH10f will be called out as needed. AC Power Pro64 modules use switching power supplies that can operate at 100240V and from 50-60Hz, meaning that they can be used with most of the world’s AC power systems by simply changing the line cord. The MH10/MH10f is equipped with a standard grounded IEC power inlet (with fuse) which can accept the interchangeable IEC power cord. Access the fuse by pressing on the spring-loaded hatch beneath the AC power inlet. Fuse The fuse holder is spring-loaded and has space for two fuses, one main and one spare (optional). Press the fuse holder cover to access the fuse. When checking or replacing a fuse, always power off the Pro64 unit and remove the line cord from the AC power source. Always replace the fuse with one of the same rating as that being changed. Backup DC Power - MH10f For applications where a backup power source is required, the MH10f is equipped with a backup DC power inlet using a locking 4-pin XLR jack. A DC power supply capable of outputting 24VDC ±5% at 1 amp is required. In the locking XLR plug, connect pin 1 to ground and pin 4 to the 24VDC ...
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