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MMM-4711 & MMX-4711:
4 ASI to ASI Combiner / DeCombiner. | ||
FEATURES:
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GENERAL:
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The MMM-4711 and MMX-4711 are part of a family of data transcoders for converting between the commonly
used MPEG2 Transport Stream formats for video distribution in the broadcast industry. | ||
TECHNICAL SPECIFICATIONS:
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MMM-4711: |
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Inputs: |
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Type 1 |
4 x ASI-C 75 Ω, 800 mVp-p, BNC connector. |
Maximum Data Rate per channel |
Sum total ≤ 0.95 x selected output rate with 188 byte signals, or |
≤ 0.88 x selected output rate with 204 byte signals. |
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Equalisation |
Automatic, better than 200 metres at 270 Mb/s for Belden 8281 or equivalent cable. |
Type 2 |
RS232 Uni directional data input (maximum 38k4 baud). |
Output: |
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Type |
2 x ASI-C 75 Ω, 800 mVp-p, BNC connector, Continuous or Burst (settable). |
Payload Rate Switch Settable |
10 Mb/s; |
31.672 Mb/s; |
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34.368 Mb/s (equivalent to E3 rate); |
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41.227 Mb/s; |
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44.736 Mb/s (equivalent to Unframed DS3 rate); |
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44.210Mb/s (equivalent to Framed DS3 rate); |
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80 Mb/s; |
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90 Mb/s; |
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110 Mb/s; |
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148 Mb/s (suited for STM-1); and |
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213 Mb/s. |
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Alarm Outputs: |
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Major |
Open circuit on sum of ASI input payload rates in excess of set ASI output payload rate, or loss of power.
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Minor |
Open circuit on no valid input ASI streams present, or loss of power. |
MMX-4711: |
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Inputs: |
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Type |
ASI-C 75 Ω, 800 mVp-p, BNC connector. |
(Equivalent to MMM-4711 output rate). |
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Equalisation |
Automatic, better than 250 metres at 270 Mb/s for Belden 8281 or equivalent cable. |
Outputs: |
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Type 1 |
4 x ASI-C 75 Ω, 800 mVp-p, BNC connector. |
Data Rate |
Same as MMM-4711 input rate. |
Type 2 |
RS232 Uni directional data output. |
Alarm Outputs: |
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Major |
Open circuit on no valid ASI input present, or loss of power. |
Minor |
Open circuit on no valid output ASI streams present, or loss of power. |
Power Requirements: |
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Voltage |
28 Vac CT (14-0-14) or ±16 Vdc. |
Power consumption |
MMM-4711 < 5VA, MMX-4711 < 4VA. |
Other: |
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Temperature range |
0 - 50°C ambient. |
Mechanical |
For mounting in IRT 19" rack chassis with input, output and power connections on the rear panel. |
Finish: Front panel |
Grey background, black lettering & red IRT logo. |
Rear assembly |
Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals. |
Dimensions |
6 HP x 3 U x 220 mm IRT Eurocard. |
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Due to our policy of continuing development, these specifications are subject to change without notice.
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