Cahon Systems

Cahon Systems Inc.

Broadband Satellite Terminal (BST)

Cahon Systems

BST (Broadband Satellite Terminal) Network Diagram

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Ground

Gateway

INMARSAT GLOBAL IPNETWORK

Gateway

May Be Same Satellite & Gateway

Static/Dynamic IP

DirectIP Connection to Inmarsat Network

(Single Hop)

SatelliteIP Connection to Inmarsat Network

(Double Hop)

Aircraft

SatelliteIP Connection to Inmarsat Network

MILNET, Internet, VPN, T1/E1, VSAT

Voice

Voice

Serial

Serial

E/N

Static IP

E/NE/N E/N

Gnd Test

E/N

BST 210

Voice

Voice

Serial

Serial

E/N

Sta

tic

IP

E/N E/N

Gnd Test

E/N

BST 110

IP Video IP Video

Cahon Systems

BST System Capabilities

• Inmarsat Compatible– SwiftBroadband (Airborne version of BGAN)

• Voice– 2 VoIP channels, wired telephone network toll quality– Push-to-talk supervision transmitted in-band– Full Duplex capable, each direction independent– Uses bandwidth only when talking (background)

• Video or Other UDP Data– 10/100Base-T (UDP)– 32 kbps, 64 Kbps, 128 Kbps, 256 Kbps fixed

streaming or variable background (selectable)• Two Async Serial Data Channels

– Full Duplex, optional hardware flow control– Telemetry & Command (T&C), 38.4 Kbps (default

rate)– Payload Data, up to 115.2 Kbps

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Cahon Systems

BST Security & Redundancy

• Inmarsat Encryption – Satellite air interface segment commercially

encrypted by the Inmarsat network– NSA Type-1 encryption on satellite command links

• BST End to End Encryption– AES 256 shared key– User selectable for each interface individually

• User Encrypted Payloads– BST delivers externally encrypted payloads

transparently• Redundant Connection, Ground Station to

Inmarsat – Direct T1/E1, VPN, Mil Net, VSAT, Internet – Single

Hop– Satellite (BGAN) backup – Double Hop4

Cahon Systems

BST Interfaces

• Toll Quality VoIP Audio, 2 Channels– Transformer Coupled, 150 Ohm or 600 Ohm balanced – Input level – 1Vpp to 50Vp-p (ARC-210 compatible)– Output level – 1Vpp to 3Vp-p– 28V Logic ground for push-to-talk (PTT) in and out– Full Duplex capable, each direction independent

• 10/100Base-T Ethernet (UDP)– User data or video, streaming or background

• RS-422 Async Serial Data– Full duplex asynchronous data, up to 115.2 Kbps

(w/optional flow control)• RS-232/422 Async Serial Data

– EIA-232/422, selectable by wiring– Full duplex asynchronous data, up to 115.2 Kbps

(w/optional flow control)• RS-422 Async Serial Control (Terminal

Administration)– Configuration and status monitoring of terminal, up to

115.2 Kbps (w/optional flow control).

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Cahon Systems6

BST SWaP & Temperature

• SWaP (Size, Weight and Power)– Airborne Equipment

• Chassis Size < 0.6 cu ft (10” x 18” x 5”), excluding connectors• System Weight ≤ 30 lbs, including HLD & antenna • System Power ≤ 300 W, including HLD & antenna

– Ground Equipment• Chassis Size: 2U (3.5” high), 19” rack mount• Chassis Weight ≤ 20 lbs, excluding radome (< 50 lbs)• System Power ≤ 400W, including radome

• Temperature– Airborne Equipment

• Antenna (-73° C (start-up) to +49° C (start-up))• Chassis (-40° C (start-up) to +70° C (start-up))

– Ground Equipment• Antenna (-32° C (start-up) to +49° C (start-up))• Chassis (-32° C (start-up) to +35° C (start-up))

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Cahon Systems

BST Functional Description (UAS Configuration)

• Bandwidth Capability– 432kbps maximum

• Background IP (shared bandwidth)• Streaming IP (fixed 32 Kbps, 64 Kbps, 128 Kbps or 256 Kbps rates)

• Video (shares bandwidth with payload data)– UDP on 10/100Base-T Ethernet– >200 Kbps background, or streaming

• Voice– 2 VoIP channels– Full duplex capable – Wired telephone voice quality– Push-to-talk– ARC-210 style interfaces

• Payload Data– 115.2 Kbps async– 10/100Base-T Ethernet (UDP)– Full Duplex

• UA Control/System Administration– Telemetry & Command (T&C) Data– Also includes BST admin– Combined 38.4 Kbps (default rate)

• Encryption– Commercial AES 256 bit encryption

ApplicationSpecific Interface

Cards&

AES-256 Encryption

HLD

Transceiver

MODEM

Analog

Analog

PTT (Logic)

PTT (Logic)

EIA422/232w/flow control

Ethernet

Ethernet

Video (UDP)

Payload Data115.2 Kbps

RF

{UHF/VHFVoice

Radio #1

UHF/VHF Voice

Radio #2

Alternate Network Connection / Local Bypass

AntennaControllerARINC 429EIA422

38.4 KbpsINS/GPS Data

(Airborne Only)

EIA422T & C Data/System Admin, 38.4 Kbps

{

EIA422Separate System Admin, 38.4 Kbps

(Not Used)

(Airborne Only)

Identical Architecture,

Airborne & Ground7

Cahon Systems

Airborne SBU, HLD & Antenna Specifications

• COTS LRU SWaP– SwiftBroadband Unit (SBU)

• 12.62”(L) X 7.62”(W) X 2.25”(H)• 5.5 lbs• 28VDC, ~100W

– High Power/Low Noise Amplifiers & Diplexer (HLD)• 9”(L) X 7.9”(W) X 2”(H)• 5.9 lbs• Powered from SBU

– High Gain Antenna (HGA-6000)• 10”(L) X 10”(W) X 9.7”(H)• 4.3 lbs• Powered from SBU

• Operating Temperature Specification– SBU & HLD

• -25° C to +55° C (+70 ° C for 30 minutes)– HGA-6000 Antenna

• -65° C to +70° C (Tested to -73 ° C)

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Cahon Systems

Explorer 700 (Terrestrial Terminal) Specifications

• COTS LRU SWaP– Transceiver

• 11”(L) X 8.9”(W) X 1.6”(H)• 3.3 lbs

– Antenna• 11.7”(L) X 15.7”(W) X 2”(H)• 3.7 lbs

– 100VAC to 240VAC or battery– 65W

• Temperature Specification– Operating Temperature

• -25 ° C to +55 ° C

Transceiver/Modem

Detachable antenna

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Cahon Systems

BST Airborne Terminal

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Cahon Systems

Amplifiers/Diplexer (HLD) & HGA-6000 Antenna

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Cahon Systems

Cahon Systems Inc. BST Ground Terminal & Antenna

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Cahon Systems

HGA-6000 Integration

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Cahon Systems

BST Airborne Terminal Integration

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