The Converter,telegraph-Telephone Si, cataloged under National Stock Number 5805-00-985-9088, is classified within Federal Supply Class 5805 (Telephone and Telegraph Equipment) of the Communication, Detection, and Coherent Radiation Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5805-00-985-9088 |
| Item Name | Converter,telegraph-Telephone Si |
| FSC / FSG | 5805 / 58 — Telephone and Telegraph Equipment |
| Status | ACTIVE |
| Phase | SINGLE LOCATION NOT OTHERWISE SPECIFIED |
| Received Line Signal Frequency Rating | 1.2 KILOHERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM |
| AC Voltage Rating | 117.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Switchboard Side Current Type | AC |
| Signal Type | RING DOWN |
| Received Signal DC Voltage Rating | 26.0 VOLTS NOMINAL |
| DC Voltage Rating | 26.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Transmitted Line Signal Frequency Rating | 1.2 KILOHERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM |
| Joint Electronics Type Designation System Item Type Number | CV5425/U |
| Transmitted Switchboard Signal Frequency Rating | 20.0 HERTZ NOMINAL |
| Received Switchboard Signal Frequency Rating | 20.0 HERTZ NOMINAL |
| Joint Electronics Type Designation System Item Name | CONVERTER,TELEGRAPH-TELEPHONE SIGNAL |
| Electrical Power Source Relationship | ALTERNATE OPERATING |
| Transmitted Signal DC Voltage Rating | 26.0 VOLTS NOMINAL |
| Communication Circuit Quantity | 1 |
| Frequency Rating | 60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Reference | Meaning |
|---|---|
| 90032000-000 | 5/9 Secondary reference U.S. Government activity |
| CV-425/U | 3/2 Design control — primary reference U.S. Government activity |
NSN 5805-00-985-9088 is a Converter,telegraph-Telephone Si, classified under FSC 5805, Telephone and Telegraph Equipment. Status: active.
Key specifications for 5805-00-985-9088: Overall Height: 7.250 INCHES NOMINAL IN; Phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED; Received Line Signal Frequency Rating: 1.2 KILOHERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM; AC Voltage Rating: 117.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED. 16 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.