Santa Maria Oceanic Control Center

Current ATM system

• Proprietary hardware and software.

• End of life.

• End of support.

Current Communications

• Legacy X25 and serial EIA232.

• Limited redundancy and expansibility.

• Some TCP/IP communications.

Gander (AIDC)

Piarco

Canarias (OLDI)

New York (AIDC)

Cabo Verde (OLDI)

Madrid (OLDI) Shanwick(OLDI)

Lisboa (OLDI)

ATS Communications

Santa Maria FIR

(CPDLC)

(SATVOICE)

ATM System Chains Switching

Problems

• Hardware no longer supported.

• Software uses legacy protocols.

• New systems without X25 protocol support.

– Requires proprietary solutions.

• TCP/IP communications chain ownership.

– Resource concurrency and locking problems.

• Manual SATVOICE.

Constrains

• Other ATS units operate with legacy protocols.

• Systems contributing to ATM operation not interconnected.

• Different pace of evolution of systems and stakeholders.

• Non uniform communications protocols.

Risks

• Non redundant serial systems could cause disruption of service.

• Non atomic switchover operations could raise integrity issues.

• Unwanted switchover to standby system could lead to erroneous communications.

• Cybersecurity concerns not addressed.

Solution

• Translation of legacy protocols to TCP/IP stack.

• Addressing safety at switching between ATM system chains.

• Attending Cybersecurity concerns.

• Providing services with other systems.

X25 Translation

• Other ATS units operate with X25 legacy protocol.

• ATM system communicates using TCP/IP .

• IPT offers TCP/IP service port to initiate X25 calls from authorized ATM system chain .

• IPT connects by TCP/IP to authorized ATM system chain when receiving X25 calls.

AFTN Translation

• Several ATM systems communicate with AFTN switch using TCP/IP.

• IPT offers TCP/IP service ports for several AFTN serial channels.

• Only the authorized ATM system chain can access the IPT service.

Interconnection with Voice Communications System

• ATM system communicates with Voice Communication System.

• IPT offers authorized ATM system chain SATVOICE and SELCAL dialing facility.

• IPT provides Voice Communication System with frequency allocation map from ATM operator map.

Datalink Access

• ATM system communicates using TCP/IP .

• IPT offers TCP/IP datalink service port to authorized ATM system chain .

Web Services

• ATM system communicates with IPT using Web Services for Authentication and Authorization purposes.

• IPT offers Monitoring & Control via Web Services.

• IPT provides internal equipment interconnection using Web Services.