PANASONIC AVIONICS CORPORATION
Enhanced Cell Modem
ASC-AA8190-01
PROPRIETARY AND CONFIDENTIAL
PAGE 9 OF 22
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Transmitter Power:
•
Meets ETSI TS 125.101 (3GPP).
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Transmitter Attenuation:
•
The transmitter output level has programmable limitations depending on the mechanism inside the chip.
The transmitter output level is limited by the Transmitter power. Maximum output power of Cellular UE is
+23 dBm + 1 dBm per 3GPP standard requirement.
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Modem Control:
•
The modem is only operational while the aircraft is on ground with all of the Modem Enable 1, Discrete
In1 and Modem Enable 2a, 2b (Weight-on-Wheels) discrete inputs are active.
•
The RF frequency bands and RF power amplifier output is controlled by the Modem Enable 1 and
Modem Enable 2a, 2b (Weight-on-Wheels) discrete inputs.
•
If any discrete input is not active, the RF frequency bands and RF power amplifier output remains disable
and cannot be overridden by software.
•
The eCM has fail safe circuitry to prevent unacceptable radiated or conducted interference to aircraft
system.
•
At power start up, the eCM defaults the RF frequency bands and RF power amplifier output to disable.
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Cellular Status:
•
The eCM provides one LED (Green) for Cellular connectivity/activity status indicator.
2.5 Cellular Antenna Interface
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The eCM requires two external 2x2 MIMO Cellular Antennas.
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Two SMA type connectors:
•
J4 & J5 are provided and the connections are interchangeable.
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Antenna Topology:
•
2x2 MIMO.
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Transmit/Receive:
•
1 Tx, 2 Rx.
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Frequency Range:
•
3G & 4G.
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Polarization:
•
Omni by design.
