| PSS 21H-8A1 B3 | Remote Terminal Unit (RTU) 50 SCADA RTU Architecture | 0613 | 12 | 755 KB |
| PSS 21H-8A8 B4 | Remote Terminal Unit (RTU) RTU50 Power Supply Module | 0510 | 8 | 337 KB |
| PSS 21H-8C1 B4 | I/A Series Remote Terminal Unit (RTU) RTU50 P3E/P30E Master Processor Module | 1011 | 8 | 1.0 MB |
| PSS 21H-8C4 B4 | Remote Terminal Unit (RTU) RTU 50 12 Channel Serial Module | 0500 | 8 | 1.6 MB |
| PSS 21H-8C6 B4 | Remote Terminal Unit (RTU) RTU 50 Input/Output Modules | 0910 | 20 | 2.7 MB |
| PSS 21H-8C7 B4 | Remote Terminal Unit (RTU) RTU50 Eight Channel Serial Card | 0910 | 4 | 593 KB |
| PSS 21H-8D2 B4 | I/A Series Intelligent SCADA Communications Line Server (CLS 50) | 0910 | 12 | 991 KB |
| PSS 21S-2M5 B3 | I/A Series Intelligent SCADA Master Station Advanced Application Programming Interface (AAPI) | 1203 | 4 | 611 KB |
| PSS 21S-2M6 B3 | Remote Terminal Unit (RTU) System Configurator | 0114 | 8 | 545 KB |
| PSS 21S-4A1 B3 | Remote Terminal Unit (RTU) C50 State and Logic Language (SALL) | 0697 | 4 | 44 KB |
| PSS 21S-4A2 B3 | Remote Terminal Unit (RTU) C50 TOOL -- A Diagnostic Utility | 0697 | 8 | 448 KB |
