Cadenza — diagrams, graphs, and editors from Mermaid

%% Pharos Print Scout, Device Scout and Secure Release architecture
%% DNS transport/port for GTM is not specified in the supplied materials.
flowchart LR
 subgraph CLIENTS["💻 CLOUD-CONNECTED ENDPOINTS"]
 direction TB
 WS["💻 Print Scout workstations Secure-job capture, storage and release Windows 11; macOS 14 / 15 / 26"]
 MOBILE["📱 Secure Release mobile app Android 14+ · iOS 15+ Job submission and secure release"]
 ETH241["📡 Ethernet 241 Role not detailed in the guide"]
 end

subgraph CLOUDZONE["☁️ PHAROS CLOUD"]
 direction TB
 CLOUD["☁️ Pharos Cloud Secure queue and optional cloud job storage API endpoints: *.beacon.pharos.com"]
 end

subgraph AHSERVERS["🖥️ ADVENTHEALTH APP SERVER VMS · 12 TOTAL"]
 direction TB
 DS["🔎 Device Scout · 4 VMs Fleet discovery and device data"]
 SPS["🔐 Sentry Print Service · 8 VMs 4 primary + 4 paired secondary VMs Pairs 1–4; Print Scout server mode"]
 VMSPEC["⚙️ Minimum per app-server VM 8 GB RAM · 2x1 Core · 100 GB disk Windows Server 2016 / 2019 / 2022 / 2025 TLS 1.2 · .NET Framework 4.7+"]
 end

subgraph PRINTFLEET["🖨️ MANAGED PRINTER FLEET"]
 direction TB
 ALLPR["🖨️ About 18,000 network printers Direct printing and device polling"]
 SECURE["🔐 About 5,000 secure printers 4 groups of about 1,250 printers each Each hospital uses all four SPS pairs Group 1→pair 1; 2→2; 3→3; 4→4"]
 MFG["📋 Additional device ports (TCP) App → printer: Canon 8443 · HP 7627 KM 80, 50003 · Ricoh 51443 Toshiba 49630, 50083 KM printer → app: 50004, 50006, 50007"]
 end

subgraph FAILOVER["🌐 SECURE RELEASE FAILOVER"]
 direction TB
 GTM["🌐 GTM DNS Answers with assigned primary SPS or that pair's secondary on failover DNS failover only; no load balancing"]
 end

WS -- "Cloud API / HTTPS TCP 443" --> CLOUD
  MOBILE -- "Cloud API / HTTPS TCP 443" --> CLOUD
  ETH241 -- "Cloud API / HTTPS TCP 443" --> CLOUD
  DS -- "Cloud API / HTTPS TCP 443" --> CLOUD
  SPS -- "Cloud API / HTTPS TCP 443" --> CLOUD
  WS -- "Direct delivery / TCP 443, 631, 9100" --> ALLPR
  WS -- "Device data / SNMP UDP 161" --> ALLPR
  DS -- "Device data / SNMP UDP 161" --> ALLPR
  SPS -- "Server-mode delivery / TCP 443, 631, 9100" --> ALLPR
  SECURE -- "Printer-initiated release / TCP 4321" --> SPS
  SECURE -. "DNS lookup; port not specified" .-> GTM
  GTM -. "DNS answer; port not specified" .-> SECURE

classDef workstation fill:#EAF5FB,stroke:#006298,stroke-width:2px,color:#073852
  classDef cloud fill:#DDF3FC,stroke:#006298,stroke-width:3px,color:#073852
  class WS,MOBILE workstation
  class CLOUD cloud
  linkStyle 0,1,2,3,4 stroke:#006298,stroke-width:2px

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