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  NTS-100i NTS-150

NTS-200

TimeVault

Time Protocols
NTP

     Server mode

     Broadcast mode  

     Client mode    

SNTP

Time

Daytime  

Network Connections
100Base-T (autosensing)  

10Base-T (autosensing)

Time References
GPS

NTP    

ACTS dial-up  

 

IRIG-B      
Time Cross Checking    

 

Standard with Server Available with one of either GPS, ACTS, or IRIG-B

GPS

GPS & NTP

Rolling redundant GPS/ACTS/NTP

Client Performance
Potential Client Synchronization Accuracy
(rps = NTP requests/second)
1-10 ms @ <10 rps 0.1 ms @ 75 rps

1-10 ms @ 100 rps

100 ms @ 200 rps
0.1 ms @ 75 rps

1-10 ms @ 100 rps

100 ms @ 200 rps
0.1 ms @ 75 rps

1-10 ms @ 100 rps

100 ms @ 200 rps
Theoretical maximum number of clients at 1ms client accuracy 400 48,000

48,000

48,000

Network Protocols
Ethernet - 802.3

TCP/IP

HTTP  

      Status  

      Control  

Telnet

SNMP

FTP  

BOOTP  

DHCP

MIB

MD5

User Interface
Keypad/Display  

Browser Control  

LEDs

Telnet

RS-232

GPS Subsystem
Channels 8 12

12

12

Single Satellite window mode  
Accuracy

1 microsecond to UTC

1 microsecond to UTC

1 microsecond to UTC

1 microsecond to UTC

Receiver location Rack Rack

Rack

Rack

Cable length std/max/max with in-line amplifier 50/150/300 50/150/300

50/150/300

50/150/300

Cable length with Downconverter Up to 1500 Up to 1500

Up to 1500

Up to 1500

ACTS Dial-up Subsystem
Modem 14.4 Kbps  

 

53 Kbps

Accuracy 8 milliseconds to UTC     5 milliseconds to UTC
Access Security
MD 5 Authentication

HTTP Lockout    

Telnet Lockout  

FTP Lockout  

Keypad Lockout    

 

RS-232 Lockout    

 

Ancillary Outputs
1 PPS      
IRIG-B      
10 MHz
(replaces 1 PPS or IRIG-B)
     
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