Sim Slots - Panasonic RD-AA8190-01 Instruction Manual

PANASONIC AVIONICS CORPORATION
Enhanced Cell Modem
The Panasonic enhanced cell modem (eCM) incorporates a commercial off the shelf (COTS) cellular radio. The
eCM COTS cellular radio utilizes a combination of software, firmware and frequency selective hardware to
support multiple 3GPP cellular standards and frequency bands. Though the COTS radio is flexible, frequency
selective hardware components such as filters, amplifiers, etc. limit the transmission capabilities of the COTS
radio. Thus, the eCM COTS radio is not considered a software defined radio.
COTS radio detailed design information is generally unavailable, and a quantitative analysis of COTS radio failure
modes and their effects on airplane systems is impossible. Given the limited information, Panasonic elected to
mitigate potential failure effects by disabling the COTS radio based on aircraft discrete input signals. The eCM
incorporates high reliability, simple hardware circuits which process the aircraft discrete input signals and control
power to the COTS radio. The reliability of these simple hardware circuits has been proven to sufficiently mitigate
potential interference with airplane systems and potential hazards through the use of industry standard
techniques,such as fault tree analyses, reliability calculations, etc. Panasonic supplemented the eCM hardware
mitigation through qualitative analyses of eCM COTS radio failure modes. The analyses concluded that
interference with airplane systems caused by eCM COTS radio failure is extremely unlikely. Though qualitatively it
is extremely unlikely that the eCM will interfere with airplanes systems, Panasonic suggests multiple aircraft
discrete signals are routed to the eCM. The combination of multiple input discrete signals in conjunction with
qualitative analyses provide further mitigation of eCM COTS radio interference with airplane systems.
Under normal operating conditions, when the eCM radios are transmitting in operational frequency bands, there is
no potential for interfering with airplane systems. Panasonic chose to use simple hardware to remove power from
the COTS radios based on the state of airplane discrete input signals to the eCM in order to preclude the potential
for unintended operation resulting in out of band emissions. The simple hardware has an intended probability of
failure of less than 1e-009 at Boeing's worst case for Life of Aircraft (LOA) of 76,000 hours at 35°C ambient
temperature.

5.5 SIM Slots

The eCM provides two UICC SIM slots located on the rear panel and identified as SIM 0 and SIM 1.
The eCM ships to customers with a Panasonic Avionics Corporation M2M SIM Card installed in SIM 0.
Please do not remove the PAC SIM Card. An optional (airline preferred carrier) M2M SIM Card may be
installed in SIM 1 slot. The optional SIM Card must be manufactured in accordance with PAC Drawing
A502000004. SIM cards must be inserted into SIM slots as illustrated. For SIM 0, the contacts will be face
down. For SIM 1, the contacts will be face up. In both cases, the end of the SIM card with the chamfered
corner should face out. For security reasons, the SIM slots are covered with a panel and four screws.
PROPRIETARY AND CONFIDENTIAL
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ASC-AA8190-01