500617-2

the ICG nxtlink 200 Iridium Communications system incorporates dual Iridium transceivers with an internal Ctu, providing a standalone comprehensive communications system that can operate over a single coax and Iridium antenna. the nxtlink 200 permits connections of conventional telephony devices or legacy Ctu systems through either standard 2-Wire tip and ring circuits or 4-Wire audio connections. Ctu features include intercom calling, call transfer, conferencing and follow on dialing. the device is simple to operate offering standard dialing conventions and paBx operations with familiar call progress tones. It is the ideal solution for aircraft requiring no more than six telephony connections and seamless global communications services without the inconveniences of hand-offs or no service areas.

(4 ea.) 2 -Wire tip and ring telephony subscriber circuits.

(2 ea.) 4-Wire audio circuits with discreet hook status and incoming ring signals.

(1 ea.) 600 ohm aC Impedance.

(1 ea.) 60 vrms 20hz ring signal.

(1 ea.) transceiver connectionsmotorola dsC Bus.

Call on-hold and call transfer - simple hook fashes can place inbound, outbound or intercom calls on-hold or transfer the call.

Three-party Conferencing - the ICg nxtlink 200 system provides basic 3- party conferencing that permits a conference between two onboard callers and a ground party or two ground parties to a single

Intercom Calling - internal calling is provided to permit calling to other extensions onboard and to provide conferencing of extensions

Audio Level Adjustments - the ICg nxtlink 200 provides facilities to provide up to 20db of gain or attenuation per extension or through the Iridium channel, to optimize voice quality in noisy cabins or to accommodate various types of handsets.

Digital Echo Suppression for 2-Wire telephone circuits and full credit card calling services supported.

Interface with the magnastar® aIu device to permit Iridium calls via mach1® handsets.

Programmable audio and interface parameters to permit connections of non-standard systems and devices.