GNS181PEX: Low Profile GPS / GLONASS / Galileo / BeiDou Clock (PCI Express)
Key Features
- PCI Express Interface
- 2 time trigger inputs
- Programmable Pulse Outputs
Frequency Synthesizer and Time Code Mode - Memory Mapped I/O time reads for high access rates
- RS-232 interface
- IRIG-B/AFNOR time code outputs
- Plug and Play
- DCF77-simulation
- Allows direct transmission routes of up to 150 m when using Ultraflex H2010 coaxial cable
- Configurable time scale (UTC/local, GPS time, TAI)
- Driver software for all popular operating systems
- Possible usage in mobile applications
- Including 40 dB Multi GNSS L1 antenna, 20m pre-assembled Belden H155 cable and technical documentation on USB key
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Previous Models - GNS181PEX:
GLN180PEX :: Low Profile GPS / GLONASS Clock (PCI Express)
Product Description
This PCI Express slot card is the best choice for adding a highly accurate time base to your servers or workstations. It can be used as a stratum 0 reference time source for NTP and transforms any machine into a Stratum 1 NTP server without consuming additional physical space in your server room.
The GNS181PEX comes with a truckload of features to enable software developers to overcome the timing limitations of COTS operating systems like Linux or Windows. The powerful and highly functional Meinberg API (Application Programming Interface) delivers an easy to use and portable way of accessing all Meinberg bus level timing devices, including ISA, PCI, PCI-X, PCI Express and USB time synchronization products.
Legacy interfaces like IRIG, 1PPS or serial time strings can be used to connect other equipment to the PCIe slot card and transfer the time base over dedicated cable connections to systems which cannot be synchronized via NTP or other network protocols.
The new Memory Mapped Access feature offers a fast, simple and efficient way of reading the current time with high precision.
The Windows driver package includes a time synchronization service which runs in the background and adjusts the Windows system time continuously and invisibly. This package also includes a monitor program to enable the user to check the status of the device and time adjustment service. If the monitor program is run with administrator rights, it can also be used to modify configurable parameters.
The Linux and FreeBSD driver packages include a kernel driver which allows the product to be used as a reference time source for the NTP daemon included in most Unix-like operating systems. This also allows the computer to be used as an NTP time server to provide accurate time to NTP clients on the network. Some command line tools can be used to modify configurable parameters and monitor the status of the clock in use.
Please contact Meinberg's Support Team for more information on using the card with other operating systems: techsupport@meinberg.de.
The device's serial port is not required for operation but can be used to update the card's firmware, or to provide another computer with the current time via a serial time string.
Satellite receiver for mobile applications:
The GNSS timing board is designed for operating in mobile environments like cars, trains or airplanes. An optimized active GPS antenna RV-76 with 10 meters coax cable RG-58 for operation in mobile environment is still available.
Characteristics
Receiver Type |
Combined GPS / Galileo / GLONASS / BeiDou receiver
|
Navigation Features | The satellite receiver can determine its position under the following conditions:
|
Status Indicators |
Status info by 4 LED light indicators (2mm light pipes)
|
Type of Antenna | Included 40 dB L1 Multi-GNSS antenna
(Data Sheet) |
Synchronization Time | Max. 1 minute in normal operating conditions
Max. 25 minutes (average 12 minutes) upon first initialization or in the absence of saved satellite data |
Frequency Outputs | Frequency output 10 MHz, TTL level |
Pulse Outputs | 3 Programmable TTL outputs, per default configured as: Channel 0: Pulse per second (TTL, RS232 level), pulse duration: 200 msec Channel 1: Pulse per minute (TTL), pulse duration: 200 msec Channel 2: DCF77 compatible pulses (TTL level), pulse width: 100/200 msec |
Accuracy of Pulse Outputs | Depends on oscillator option: < ±100ns (TCXO, OCXO LQ) < ±50ns (OCXO MQ, OCXO HQ) Standard: TCXO |
Interface | Single serial RS-232 interface |
Serial Time String Output | Baudrate: 300, 600, 1200, 2400, 4800, 9600, 19200 Baud Data format: 7N2, 7E1, 7E2, 8E1, 8N1, 8N2 Time telegram: Meinberg Standard-Telegram, SAT, Uni Erlangen (NTP), SPA, NMEA0183 (RMC) or capture-telegramm |
Statusbyte | Informations about free running mode, daylight savings time and DST pre-switch anouncement, synchronization since last reset, GMT/UTC time and validity of the hardware clock data |
PWM Time Code Output | DCLS, TTL into 50 ohm (active high or active low) |
AM Time Code Output | IRIG AM sine wave signal: 3Vpp (MARK), 1Vpp (SPACE) into 50 ohm |
Supported Timecode Formats |
IRIG B002: 100pps, DCLS signal, no carrier, BCD time-of-year IRIG B122: 100pps, AM sine wave signal, 1 kHz carrier, BCD time-of-year IRIG B003: 100pps, DCLS signal, no carrier, BCD time-of-year, SBS time-of-day IRIG B123: 100pps, AM sine wave signal, 1kHz carrier, BCD time-of-year, SBS time-of-day IRIG B006: 100 pps, DCLS Signal, no carrier, BCD time-of-year, year IRIG B126: 100 pps, AM sine wave signal, 1 kHz carrier frequency, BCD time-of-year, Year IRIG B007: 100 pps, DCLS Signal, no carrier, BCD time-of-year, year, SBS time-of-day IRIG B127: 100 pps, AM sine wave signal, 1 kHz carrier frequency, BCD time-of-year, year, SBS time-of-day IEEE1344: Code according to IEEE1344-1995, 100pps, AM sine-wave signal, 1kHz carrier, BCD time-of-year, SBS time-of-day, IEEE1344 expansion for date, time zone, daylight saving and leap second in Control Functions segment C37.118: Like IEEE1344 - with inverted sign bit for UTC offset AFNOR: Code according to NFS-87500, 100pps, AM sine-wave signal, 1kHz carrier, BCD time-of-year, complete date, SBS time-of-day |
Time-Trigger inputs | Resolution: 100 nsec, triggered by falling TTL slope Time of trigger events readable via API call or serial port |
Electrical Connectors | SMA connector for antenna BNC female connector for modulated timecode 9 pin sub D male connector (with standard bracket) |
Computer interface | Single lane (x1) PCI Express (PCIe) Interface PCI Express r1.0a compatible |
Backup Battery Type | When main power supply fails, hardware clock runs free on quartz basis, almanac data is stored in RAM Life time of lithium battery min. 10 years |
Board type | Low Profile card (68,90 x 150 mm) |
Supported Temperature | Operational: 0 - 50 °C (32 - 122 °F)
Storage: -20 - 70 °C (-4 - 158 °F) |
Supported Humidity | Max. 85 % (non-condensing) at 40 °C |
Warranty | Three-year warranty |
Options |
Oscillator upgrade:
OCXO-LQ, -SQ, -MQ or -HQ (instead of TCXO) for extended Holdover capabilities
(see oscillator comparison table for further details) |
RoHS Status of Product | This product is fully RoHS-compliant. |
WEEE Status of Product | This product is handled as a B2B (Business to Business) category product. To ensure that the product is disposed of in a WEEE-compliant fashion, it can be returned to the manufacturer. Any transportation expenses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself. |
Downloads
Short Info Sheet
Manuals
- For drivers, SDKs, tools and utilities, please check our Download Section