True Time - IP Network Timing Products


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»	Time Server Virtual Tour
»	TimeVault
»	NTS-200
»	NTS-150
»	NTS-100i
»	Product Comparison
»	Time Sync Software
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»	FAQ

Download a detailed product comparison data sheet in pdf format (150k)
	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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