cahon systems cahon systems inc. broadband satellite terminal (bst)
TRANSCRIPT
Cahon Systems
BST (Broadband Satellite Terminal) Network Diagram
2
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
3
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).
5
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))
6
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)
8
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
9