Key Features
- PCI Express Interface
- 2 time trigger inputs
- Pulses per second and per
minute
- Memory Mapped I/O time reads for high
access rates
- RS232 interface
- IRIG-B/AFNOR time code
outputs
- Plug and Play
- DCF77-simulation
- Antenna connected with up to 300m of
standard coaxial cable RG58
- NEW:
Configurable time scale (UTC/local, GPS time,
TAI)
- Driver software for all popular
operating systems
- Including GPS antenna, 20m
standard cable and manual on USB key
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.
Being the first PCI Express GPS timing device on
the market, the GPS170PEX 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 drivers package for Windows contains a
time adjustment service which runs in the background
and adjusts the Windows system time continously and
smoothly. A monitor program is also included which
lets the user check the status of the device and the
time adjustment service, and can be used to modify
configurable parameters.
The driver package for Linux contains a
kernel driver which allows the board to be used as a
reference time source for the NTP daemon which is
shipped with most Linux distributions. This also
turns the computer into a NTP time server which can
also provide accurate time to other NTP clients on
the network. Some command line tools can be used to
setup configurable parameters and monitor the status
of the board.
In cooperation with Meinberg, the community
developed a driver for OpenBSD (www.openbsd.org) which
is called mbg.
Additional drivers packages are available for
DOS, Novell NetWare, and OS/2.
At the bottom of this page there's a link to the
download area.
The device's serial port can be used to update the
card's firmware. Additionally it can be connected to
the serial port of a computer to use the card as
reference time source under operating systems where a
serial time string is supported, e.g. by NTP, but no
kernel device driver is available.
Characteristics
| Type of
receiver: |
6 channel GPS C/A-code
receiver |
| Type of
antenna: |
Remote powered GPS antenna/converter unit, up
to 300m distance to antenna with RG58 and up to
700m distance with RG213 cable |
| Status
info: |
Fail-LED shows that the
internal timing has not been synchronized or that
a system error occurred
Lock-LED shows that the calculation of the
position has been achieved after reset |
| Synchronization
time: |
Max. 1 minute in normal
operation mode, approx. 12 minutes after a cold
start (discharged buffer battery) |
| 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: |
< ± 250ns |
|
Interface: |
Single serial RS232
interface |
| Data format PC
interface: |
Binary, byte serial
(compatible with Meinberg DCF77 Slot Card
PEX511) |
| Data format of
interfaces: |
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 |
| Unmodulated time
code output: |
DCLS, TTL into 50 ohm
(active high or active low) |
| Modulated time code
output: |
IRIG AM sine wave
signal:
3Vpp (MARK), 1Vpp (SPACE) into 50 ohm |
| Generated time
codes: |
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
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 Funktions Segment
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 event readable via computer slot
or optional second RS232-interface |
| Electrical
connectors: |
BNC female connector for
antenna
BNC female connector for modulated timecode
9 pin sub D male connector |
| Computer
interface: |
Single lane (x1) PCI
Express (PCIe) Interface
PCI Express r1.0a compatible |
| Power
supply: |
+3.3V, @ 190mA
+12V, @ 400mA |
| 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: |
Standard height board (101
x 150 mm) |
| Ambient
temperature: |
0 ... 50°C / 32 ...
122°F |
|
Humidity: |
Max. 85% |
|
Options: |
- Additional independent RS232
interface
- Additional optical output for IRIG DCLS
(instead of IRIG AM)
- Oscillator upgrade OCXO-LQ (instead of
TCXO) for extended Holdover capabilities
(see oscillator
table for further details)
|
| RoHS-Status of the
product: |
This product is fully RoHS
compliant |
| WEEE status of the
product: |
This product is handled as
a B2B category product. In order to secure a WEEE
compliant waste disposal it has to be returned to
the manufacturer. Any transportation expenses for
returning this product (at its end of life) have
to be incurred by the end user, whereas Meinberg
will bear the costs for the waste disposal
itself. |
|
