Devices

Metadata	Value
TAM Boundary	#5 of 12
Mission	Device lifecycle, provisioning
Key Capabilities	Terminal management, firmware distribution, remote administration, integrator SDKs, device configuration
Last Scanned	2026-01-09

Overview

The Devices boundary (Terminal Engineering - TE) manages POS terminal firmware, configuration, terminal management system (TMS) backend services, and integrator SDKs. This is distinct from Integra (transaction processing) and focuses on terminal lifecycle management including firmware distribution, remote administration, configuration downloads, and SDK development for third-party integrators.

Applications

Integra TE - Terminal management system for PAX devices
Remote Admin - Web-based terminal management and configuration
TMS Services - Server-side infrastructure for terminal management
Integrator SDKs - Libraries for third-party integrations
Houston Platform - Next-generation terminal management

Repository Inventory

Repo	Language	Application	Description
te-remoteadmin-backend-core	Java	Remote Admin	Terminal management backend
te-remoteadmin-frontend	-	Remote Admin	Terminal management UI
pgid-tms-cfg	Java	TMS	Terminal config download service
pgid-mswd	Java	TMS	Terminal firmware download
pgid-tmds	Java	TMS	Terminal metadata service
pgid-tfs	Java	TMS	Terminal file server (images, certs)
te-tms-nexo-server	Kotlin	TMS	Nexo TMS Protocol server
te-tms-nexo-client	Java	TMS	Nexo TMS Protocol client
te-tmsserver	Java	TMS	TMS server simulator
te-integrator-sdk-java	Java	SDK	Java Integrator SDK
te-integrator-sdk-ios	Objective-C	SDK	iOS Integrator SDK
te-integrator-sdk-cpp	C++	SDK	C++ Integrator SDK
te-integrator-sdk-net-core	C#	SDK	.NET Core Integrator SDK
te-integrator-sdk-net-framework	C#	SDK	.NET Framework Integrator SDK
te-integrator-dll-core	C#	SDK	Base communication DLL
te-integrator-dll-skidata	C#	SDK	Skidata partner DLL
te-integrator-dll-orbility	C++	SDK	Orbility (ACS) partner DLL
te-integrator-dll-accor	C#	SDK	Accor (Fols) partner DLL
te-payment-core	Java	Terminal	Payment application core
te-payment-controller-pax	Java	Terminal	PAX terminal controller
te-houston-application-android	Kotlin	Houston	Houston Android app
te-houston-library-core	Java	Houston	Houston core library
csp-pos-paxA920-library	C#	POS	PAX A920 library
dataeng-dip-contracts-terminal	C#	Data Platform	Terminal management contracts
dataeng-dip-etl-ccc-terminal-management	Python	Data Platform	Terminal management Flink worker

Architecture Notes

Terminal Management Features

Feature	Implementation	Protocol
Terminal Reboot	REST API → MQTT → Terminal	MQTT v5
Config Download	REST trigger, file distribution	HTTP/REST
Firmware Download	BIP Protocol (Bind/Pull/Download/Confirm)	BIP
Nexo TMS	XML over mTLS	Nexo TMS

Supported Terminal Vendors

PAX (A920, Android-based) - Primary
Verifone VOS (Operating System)
VerixV (Legacy Verifone)
TETRA (Ingenico)

SDK Ecosystem

Full SDK coverage for integrators:

Java, Android, iOS, C++, .NET Core, .NET Framework
Partner-specific DLLs: Skidata, Orbility (ACS), Accor (Fols)

Technology Stack

Category	Technologies
Languages	Java 17, Kotlin, C++, C#, TypeScript
Frameworks	Spring Boot 3.x, Android SDK
Databases	PostgreSQL
Caching	Hazelcast
Messaging	MQTT (Eclipse Paho v5)
Job Scheduling	Quartz Scheduler
Protocols	REST/JSON, BIP, Nexo TMS (XML), MQTT

Houston Platform

Next-generation terminal management:

te-houston-application-android - Android app
te-houston-library-core - Core library
te-houston-library-controller-pax - PAX controller
te-houston-library-controller-vos - VOS controller