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S100 User Guide – Rev. D – June 2005 119
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Appendix A
S100 Specifications
Note: The GPS antenna described in this manual has been replaced as described in
“Appendix E” on page 141
.
S100 Data Sheet Specifications
Component Specifics Description
Network Interface Ethernet over 10/100Base-T IEEE 802.3 specifications
Connection Dual 10/100BaseT, Twisted Pair RJ45
Time Protocols NTP v2 (RFC 1119), NTP v3 (RFC 1305), NTP
v4 (IETF Draft Standard), SNTP (RFC 2030),
Time Protocol (RFC 868), Daytime Protocol
(RFC 867) IRIG-B (120,122,123)
Supported Protocols SNMP v3, TCP/IP, MD5 Authentication (NTP),
SNMP v1 (RFC 1157), DHCP (RFC 2131), SSH
(Secure Shell), HTTP/HTML/HTTPS (RFC
2616)
Serial Connection Serial Port RS-232/DB9 DTE
Software Time Utility (MS Windows) SymmTime™ (www.ntp-systems.com/
symmtime.asp)
Timing Accuracy Network 1–10 milliseconds, typical
GPS <1 microsecond ( relative to UTC, GPS
tracking)
Dial-up service <1-10 milliseconds, on sync
Oscillator
Rate stability: 5 x 10
-7
GPS Input Channels and Frequency Eight, C/A code
Cable Type 50 feet (15.25m) /RG58
Antenna Size: 3.04”d x 2.94”h (7.72cm x 7.47cm)
Operating temperature: -40°C to +85°C
Acquisition <5 minutes
Chassis A/C Power In 100–240VAC, Auto-switching 50-60 Hz
Size and Weight 1.75”H x 17.0”W x 18”D (4.45cm x 43.2cm x
45.7cm)
1U Height Rack Mount, 18 lbs. (8.2Kg)