STANAG 5066


Overview:

The NATO standard STANAG 5066, Profile for High Frequency (HF) Radio Data Communications, included in the RapidM RC66, RC8 & RC10 controllers, defines a layered suite of protocols for data communication over beyond line-of-sight HF radio.  Based on RapidM’s field proven and JITC certified S5066 technology, the RC66, RC8 & RC10 controllers in combination with different clients provides reliable data communication services, such as Email, messaging, chat and IP data, over degraded radio networks.

Status:

The first edition of the STANAG 5066 – “Profile for High Frequency (HF) Radio Data Communication” was released in April 2000.  It has since been superseded by Edition 3 ratified in December 2010.

Key Features:

  • Edition 1 and Edition 2 are only useful for very small numbers or radios, or where radios transmit for a low percentage of total time, as these versions did not specify any collision avoidance techniques.
  • Edition 3 (until recently know as Edition 2) adds a mechanism call HFRTP (HF Ring Token Protocol) which provides control over which Radio transmits. Edition 3 should be used for most deployments with medium and large numbers of radios.
  • Edition 4 (being finalised) includes the extensions of the protocol stack to be used with the new wideband HF Data Modems (standard MIL-STD-188-110C & D Appendix D) and ALE protocols (standard MIL-STD-188-141D Appendix G, 4G ALE/WALE).

Relevance:

  • The versatility, efficiency, and widespread availability of the STANAG 5066 protocols have led to their use in a large number of Naval and strategic deployments.
  • It supports both ARQ and non-ARQ (Broadcast) and provides network-to-network data communications over HF by creating links and managing data transfer between nodes.

STANAG 5066 Protocol Stack & Clients:

The STANAG 5066 Edition 3 specification consists of the following major annexes, as summarised below:

  • STANAG 5066 Protocol Stack Descriptions:
    • Annex A: Subnetwork Interface Sublayer
    • Annex B: Channel Access Sublayer
    • Annex C: Data Transfer Sublayer
    • Annex D: Interface between Data Transfer Sublayer and Communications Equipment
    • Annex E: HF Modem Remote Control Interface
    • Annex F: HF Subnetwork Client Requirements
    • Annex G: Use of Waveforms at Data Rates Above 2400 bps
    • Annex H: Implementation Guide and Notes
    • Annex I: Messages and Procedures for Frequency Change
    • Annex J: General Requirements for Enhanced Media-Access-Control (MAC) Capabilities in Multi-Node STANAG 5066 Networks
    • Annex K: High-Frequency Carrier-Sense Multiple-Access (CSMA) Protocols (information only)
    • Annex L: High-Frequency Wireless Token-Ring-Protocol (WTRP) Requirements (information only)
    • Annex M: Adaptive Time-Division Multiple-Access (ATDMA) Protocols using STANAG 5066 DTS Layer Messaging (information only; this annex is currently empty, with the title as a placeholder).
    • Annex N: Guidance on Address Management in STANAG 5066 Networks (information only).
  • STANAG 5066 Subnetwork Client Descriptions:
    • Annex F.1: Standardized Client Requirements
    • Annex F.2: Subnet Management Client (Optional)
    • Annex F.3: Character Oriented Serial Stream (COSS) Client (Optional)
    • Annex F.4: STANAG 4406 Annex E – Tactical Military Message Handling (T-MMHS) Client (Optional)
    • Annex F.5: STANAG 5066 HF Mail Transfer Protocol (HMTP) Client (Optional)
    • Annex F.6: HF Post-Office Protocol (HFPOP) Client (Optional)
    • Annex F.7: Operator Orderwire (HFCHAT)) Client (Optional)
    • Annex F.8: Reliable Connection-Oriented Protocol (RCOP) (Optional)
    • Annex F.9: Unreliable Datagram Oriented Protocol (UDOP) (Optional)
    • Annex F.10: Extended Client Definition using RCOP/UDOP Application Identifiers (Optional)
    • Annex F.11: ETHER Client (Optional)
    • Annex F.12: STANAG 5066 IP Client
    • Annex F.13: Reserved Service Access Point Identifiers (Optional)
    • Annex F.14: STANAG 5066 Compressed File Transport Protocol (CFTP) Client (Optional)
    • Annex F.15: Unassigned Service Access Point Identifiers (Optional)
    • Annex F.16: RAW SIS Socket Server

STANAG 5066 Edition 3 illustrated

Figure 1: STANAG 5066 Edition 3 illustrated

RC Family Products Comparison  RC10 RC8 RC66 RC50
Use

 

 

Naval & Strategic      
Government & Security  
Industrial/Commercial        
Installation

 

19″ Rack Mount (Dedicated Hardware)    
PC Software    
Conformance to Standard S5066 Wideband ARQ Stack (Edition 4*)  
S5066 ARQ Stack (Edition 3)        
Annex A – Subnet Interface Layer        
Annex B – Channel Access Layer        
Annex C – Data Transfer Layer        
Annex D – Modem Access        
Annex E – HF Modem Remote Control Interface        
Annex F.3 – S5066 COSS Client (for ACP-127)      
Annex F.5 – S5066 HMTP Email Client  
Annex F.12 – S5066 IP Client      
Annex F.14 – S5066 CFTP Email Client    
Annex F.16 – SIS Protocol        
Annex G: Data Rates Above 2400 bps        
Annex H: Implementation Guide and Notes        
Annex I: Messages/Procedures for Freq. Change        
Annex J: General Requirements for Enhanced MAC ( ) ( )
Annex K: High-Frequency CSMA Protocols        
Annex L: High-Frequency WTRP Requirements ( ) ( )
Annex M: ATDMA Protocols (empty annex) N/A N/A N/A N/A
Annex N: Guidance on Address Management in STANAG 5066 Networks (info only) N/A N/A N/A N/A

Table 1: STANAG 5066 Edition Use, Installation & Conformance to Standard

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