121 Extender & 421 Switch
Common specifications
Cable lengths: 0 to 50m over 24 AWG Shielded twisted pair 0 to 36m over 28 AWG STP
0 to 30m over 30 AWG STP
Compatibility: 480i, 480p, 720p, 1080i, and 1080p DTV resolutions
Auto correction: Signals between
Construction: Mild steel finished in matte black
Power supply: Universal voltage external PSU G29043 supplied.
121 Extender Specifications
| Dimensions: | 73 x 30 x 130 mm/2.85 x 1.2 x 5.1 in (WxHxD overall) |
I/O: | One HDMI input connector |
| One HDMI output connector |
| Power input socket (barrel type, centre positive) |
| Indicators: | Power, lock LEDs |
| Power: | Unit accepts DC in the range |
421 Switcher Specifications
Dimensions: 220 x 44 x 120 mm/8.6 x 1.75 x 4.7 in (WxHxD inc feet)
I/O:Four HDMI connectors for inputs 1–4
Input 1 includes special sensing for Meridian player One HDMI output connector
One Meridian Comms DIN connector One Meridian Comms BNC connector
One DB9 RS232 interface (9600 bits/sec, 8N1) Power input socket (barrel type, centre positive)
Indicators:
Controls:
Power:Unit accepts DC in the range 6–15V, <3VA (W)
The 421 Switch can be controlled in several | Input | MSR | MSR+ | |||||||||
ways. For direct use, a | 4 |
| CD | CD | ||||||||
lows the users to step through the inputs. LEDs | 4 |
| Radio | Radio | ||||||||
indicate which input is selected. | 3 |
| LP | Aux | ||||||||
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| TV | TV | ||
For serial control, a 9600 baud serial port is pro- | 1 |
| Tape1 | Tape | ||||||||
vided, allowing interfacing via RS232 command. | 2 |
| Tape2 | Sat | ||||||||
In addition, sources may be assigned to different | 3 |
| CDR | Disc | ||||||||
inputs, eg Cable = input 1, etc. This allows | 3 |
| Cable | Cable | ||||||||
the unit to be controlled via Meridian Comms | 4 |
| DVD | DVD | ||||||||
(DIN or BNC) so as to select the correct input | 2 |
| VCR1 | VCR1 | ||||||||
automatically when a source is selected in a | 1 |
| VCR2 | VCR2 | ||||||||
Meridian system. A G12 infrared sensor may be | 1 |
| LD | Game | ||||||||
connected via a Comms port for infrared remote |
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control capabilities. In this case the sources on | Input assignment can also be carried out in the | |||||||||||
the remote are assigned to the following default | Meridian configuration application. | |||||||||||
inputs: |
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| HDMI to DVI CABLE |
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| DVI to HDMI CABLE |
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MERIDIAN DVD | COMPUTER W/DVI | HD SATELLITE RECEIVER |
Information contained in this data sheet is correct as far as possible, but Meridian Audio accepts no liability for errors or omissions. E&OE. Trademarks are the property of their respective owners. Meridian Audio reserves the right to amend product specifications at any time. ©Text & images 2005 Meridian Audio Ltd.
making a range of additional options available in the player’s
The 421 Switch includes indicators correspond- ing to each input to show which is currently selected. The selected input indicator comes on solidly when an HDMI input is valid, and flashes when invalid. The unit is powered by a separate universal voltage supply or any DC supply from 6 to 15V, at under 3W. The rubber feet may be removed to reveal holes for permanent installa- tion – mounting plates and screws provided.
Both the 121 Extender and 421 Switch pass both HDMI audio and video and are completely transparent to handshaking, control and data signals, with extremely high bandwidth and virtually zero latency.
Meridian Audio Limited
Latham Road,
Huntingdon, Cambridgeshire PE29 6YE
United Kingdom
Tel +44 (0) 1480 445678
Fax +44 (0) 1480 445686
Meridian America Inc
8055 Troon Circle, Suite C
Austell, Atlanta GA
USA
Tel +1 (404) 344 7111
Fax +1 (404) 346 7111
Email:
Web:
HDMAXDS v1.7 • 20060203 RE
