 | PSS 21H-3A1 B3 | DCS Fieldbus Module for Migration of Honeywell Systems (Replaced by PSS 31h-3HON) | 0810 | 20 | 677 KB |
| PSS 21H-3A1 B4 | DCS Fieldbus Module for Migration of Honeywell Systems with HART Capability (Replaced by: PSS 31H-3HON) | 0113 | 24 | 664 KB |
| PSS 21H-3A2 B3 | DCS Fieldbus Module for Migration of Fisher PROVOX Systems (Replaced by PSS 31H-3A2) | 0211 | 20 | 714 KB |
| PSS 21H-3A3 B3 | DCS Fieldbus Module for Migration of Bailey Systems (Replaced by PSS 31H-3A3) | 0613 | 8 | 583 KB |
| PSS 21H-3A4 B3 | DCS Fieldbus Module for Westinghouse Process Control WDPF I and II Systems (Replaced by PSS 31H-3A4) | 0613 | 40 | 1.4 MB |
| PSS 21H-3A5 B3 | DCS Fieldbus Modules for Siemens APACS+ Automation Systems (Replaced by PSS 31H-3A5) | 0613 | 16 | 627 KB |
| PSS 21H-3A6 B3 | DCS Fieldbus Modules for ABB/Taylor MOD300 Direct I/O Automation Systems | 0409 | 12 | 574 KB |
| PSS 21H-7Q1 B3 | SPECTRUM Migration Integrators (Replaced by PSS 31H-7SMI) | 0613 | 20 | 1.5 MB |
| PSS 21H-7Q2 B3 | SPECTRUM Migration Integrator Expert (Replaced by PSS 31H-7SMIEXP) | 0613 | 16 | 409 KB |
| PSS 31H-3A2 | DCS FBM for Migration of Fisher PROVOX Systems (Supersedes: PSS 21H-3A2 B3) (Replaced by PSS 41H-3MIGFISH) | 1014 | 16 | 623 KB |
| PSS 31H-3A3 | DCS FBM for Migration of Bailey Systems (Supersedes: PSS 21H-3A3 B3) (Replaced by PSS 41H-3MIGBAIL) | 0416 | 20 | 583 KB |
| PSS 31H-3A4 | DCS FBM for Westinghouse Process Control WDPF I and II Systems (Supersedes: PSS 21H-3A4 B3) (Replaced by PSS 41H-3MIGWDPF) | 1014 | 36 | 626 KB |
| PSS 31H-3A5 | DCS Fieldbus Modules for Siemens APACS+ Automation Systems (Supersedes:PSS 21H-3A5 B3) (Replaced by PSS 41H-3MIGSIEM) | 0319 | 16 | 363 KB |
| PSS 31H-3HON | Honeywell Systems Migration Modules (Supersedes: PSS 21H-3A1 B3) (Replaced by PSS 41H-3MIGHON) | 0914 | 20 | 645 KB |
