Key facts
- Manuals
- 2
- Languages
- EN
- Last added
- 2023-10-26
Featured IRAM manuals
IRAM Plateau de Bure Observatory FO_TX Fiber Optic Transmitter User Manual
The IRAM FO_TX fiber optic transmitter is a rack unit that converts electrical receiver signals into optical signals and monitors the ageing of two laser diodes. The manual describes the 19-inch rack, its motherboard, two laser diode devices with Peltier coolers, CAN and RS232 interfaces, front-panel indicators, and optical outputs.
The document covers general specifications, device connections and pin-outs, instrument and local interfaces, implementation details, built-in firmware, CAN software functions, troubleshooting, and LabVIEW test software.
Covers: Introduction · General Specifications · Device Connections · Instrument Interfaces · Local Interfaces · Implementation Details
IRAM Plateau de Bure Observatory POLAR SWITCH Module User Manual
The IRAM Plateau de Bure Observatory POLAR SWITCH user manual, Revision A dated November 18th, 2009, describes a module that selects, for each antenna, whether horizontal or vertical polarisation data is sent to the correlators. The module can process 12 antenna and is compatible with NOEMA; commands arrive through the CAN bus and switching is synchronised by the 1pps pulse from the observatory master clock.
The document covers general specifications, device connections and pin-outs, instrument and local interfaces, implementation details of the C164 MCU, built-in firmware, CAN monitor and control points, test software, abbreviations, references and the POLAR SWITCH drawing list.
Covers: Introduction · General Specifications · Device Connections · Instrument Interfaces · Local Interfaces · Implementation Details
Latest IRAM manuals
IRAM Plateau de Bure Observatory FO_TX Fiber Optic Transmitter User Manual
User Manual 21 pages · 383 KB · ENUser manual for the IRAM FO_TX fiber optic transmitter rack, covering specifications, connections, interfaces, CAN functions, firmware and troubleshooting.
IRAM Plateau de Bure Observatory POLAR SWITCH Module User Manual
User Manual 23 pages · 639 KB · ENIRAM POLAR SWITCH user manual covering the polarization switch module, its specifications, connectors, CAN interface, and firmware.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in IRAM manuals
How much power does the module require?
The module requires +15VDC/500mA, -15VDC/300mA and +5VDC/2.5A.
From: IRAM Plateau de Bure Observatory FO_TX Fiber Optic Transmitter User Manual
What is the front IF input level?
The front IF input is AC coupled with a level of -25 dBm.
From: IRAM Plateau de Bure Observatory FO_TX Fiber Optic Transmitter User Manual
What does the POLAR SWITCH module do?
It selects, for each antenna, whether horizontal or vertical polarisation data is sent to the correlators.
From: IRAM Plateau de Bure Observatory POLAR SWITCH Module User Manual
How many antennas can the module process?
The module can process 12 antenna and is fully compatible with NOEMA.
From: IRAM Plateau de Bure Observatory POLAR SWITCH Module User Manual