NTS-dialup

(Modular Network Time Server & Antenna Emulator)

 

 

NTS-dialup can be used as 1) independent NTP server, or 2) as a support for another NTS server, delivering time into a secured LAN isolated from the Internet (this solution requires 2 NTS servers working together). In the latter instance, NTS-dialup works as an antenna emulator (STRATUM-0) for another NTS server located inside the secured LAN, enabling safe time synchronisation (no TCP IP communication) of protected LANs with official, publicly available UTC time patterns. The technology is used also to audit internal LAN time by external independent controllers. NTS-dialup server collects reference UTC time form public telephone services or official time NTP servers available on the Internet. For such purposes, NTS-dialup can be equipped with analogue PSTN, digital ISDN and GSM/GPRS/EDGE modems. Optionally, NTS-dialup can be delivered with its own single satellite GPS or Galileo** receiver or DCF77* radio long wave receiver.

PDF leaflet        PDF manual        HTML manual                                                                   Try demo SETUP of NTS-dialup

Download  NTP for Windows (FreeWare)

       ORDER INFORMATION:

      #part: NTS-dialup-X-Y-Z-Q

    

      where X:                                                                             where Y:

      PSTN modem  (std. analogue modem)                                (none) - no GPS receiver (std.)

      ISDN modem  (digital ISDN modem)                                    GPS     - single GPS receiver  

      GSM modem   (GSM, GPRS, EDGE support)                        2xGPS - double GPS receiver

      dual  PSTN-GSM modems

      dual  ISDN-GSM modems                                                   where Z:                                   where Q:

                                                                                                 1PPS   - in/out interface          (none) - RTC quartz clocks

                                                                                                 IRIG    -IRIG-B  in/out             TCXO   - oscillator

                                                                                                 1PPS-IRIG  in/out                    OCXO   -oscillator                           

     Order examples:

     NTS-dialup-PSTN (default configuration)

     NTS-dialup-PSTN-GSM                                                       Important configuration note !

     NTS-dialup-ISDN-GPS                                                        PSTN and ISDN are not possible at the same time

     NTS-dialup-PSTN-2xGPS-1PPS-TCXO

     NTS-dialup-PSTN-GSM-2xGPS-1PPS-IRIG-OCXO              Default configuration is assumed when: NTS-dialup is mentioned only.

                            

 

     Product include:   1U  rack'19  NTP server (metal case, black colour),  CD software, set of cables 

 

 

 

Input Synchronization Sources

 

• Dial-up service via PSTN, ISDN, GSM

• max. 3x NTP servers via LAN, GPRS, EDGE

• max. 2x GPS* 

• max. 2x RF AM (DCF77)*

• 1PPS*  (BNC 50Ohm)

• IRIG-B* (BNC 50 Ohm)

• IBM Sysplex (via DSUB-9 rs232c interface)

• RTC quartz clock, TCXO* or OCXO*

 

all with time accuracy better than 10mS on LAN

 

 

 

Output Synchronization Sources

 

• 2x GPS (RJ45)  NMEA antenna emulation (STRTUM-0) for secured LAN sync (see Aplication notes):

 

 

 

 

Other Output  Synchronization:

 

• 1PPS* (BNC 50Ohm)

• IRIG-B* (BNC 50 Ohm))

• IBM Sysplex (D-SUB9 rs232)

 

 

 

 

Supported client OS

 

• all UNIX systems, including AIX, HP/UX, Linux, all BSD,

• all Cisco routers,

• Novell Netware, including version 3, 4, 5, 6,

• Windows 95/98/Me/NT/2000/XP/2003/Vista both Server and Workstation versions.

 

 

 

Remote configuration

 

• WWW graphical interface, secured with SSL

• TELNET and SSH support

 

 

Remote monitoring

 

• ntpq/ntpdc support,

• WWW networking and timing status page,

• SNMP & Enterprise MIB II

• RADIUS client

 

 

Network Time Protocol supported:

 

• NTP (RFC 1305), SNTP (RFC 2030)

• TSP (RFC 3161)  /available with TCXO*  or OCXO* version only/

 

 

Long life

 

• NTS–dialup unit has natural cooling system there are no mechanical parts, such as fan or ventilator

 

 

Internal quartz   clock Stability:  25x10 -6 over   0°C to + 50°C when not externally synchronized.

 

Internal TCXO* clock Stability:   2x10 -6 over -20°C to + 70°C when not externally synchronized.

 

Internal OCXO  clock Stability:   5x10 -9 over   0°C to + 50°C when not externally synchronized.

 

 

 

Mechanical/Environmental

Size:     484 x 300 x 44,4 mm   

Power:     110-230 VAC (max 1A)

 

Operating Temperature:  0°C to +50°C

Storage Temperature:    -40°C  to +85°C

Humidity: up to 95%

 

* extra feature – requiring additional hardware

** Galileo receivers are delayed until 2008

***  requiring additional product or support