xref: /freebsd/contrib/ntp/html/hints/refclocks (revision 416ba5c74546f32a993436a99516d35008e9f384)
1*2b15cb3dSCy SchubertThis is a short overview for the reference clocks currently supported
2*2b15cb3dSCy Schubertby xntp V3. (Ultimate wisdom can be obtained from xntpd/refclock_*.c
3*2b15cb3dSCy Schubertthis file was derived from that information - unfortunately some comments
4*2b15cb3dSCy Schubertin the files tend to get stale - so use with caution)
5*2b15cb3dSCy Schubert
6*2b15cb3dSCy SchubertRefclock address	Type
7*2b15cb3dSCy Schubert127.127.0.x		no clock (fails to configure)
8*2b15cb3dSCy Schubert127.127.1.x		local clock - use local clock as reference
9*2b15cb3dSCy Schubert127.127.2.x		no clock (fails to configure)
10*2b15cb3dSCy Schubert127.127.3.x		PSTI 1010/1020 WWV Clock
11*2b15cb3dSCy Schubert127.127.4.x		SPECTRACOM WWVB receiver 8170 and Netclock/2
12*2b15cb3dSCy Schubert127.127.5.x		Kinimetric Truetime 468-DC GOES receiver
13*2b15cb3dSCy Schubert127.127.6.x		IRIG audio decode (Sun & modified BSD audio driver)
14*2b15cb3dSCy Schubert127.127.7.x		CHU Timecode (via normal receiver & Bell 103 modem)
15*2b15cb3dSCy Schubert127.127.8.x		PARSE (generic driver for a bunch of DCF/GPS clocks
16*2b15cb3dSCy Schubert			       can be extended for other clocks too)
17*2b15cb3dSCy Schubert	8.0-3		Meinberg PZF535/TCXO
18*2b15cb3dSCy Schubert	8.4-7		Meinberg PZF535/OCXO
19*2b15cb3dSCy Schubert	8.8-11		Meinberg DCF U/A 31
20*2b15cb3dSCy Schubert	8.12-15		ELV DCF7000
21*2b15cb3dSCy Schubert	8.16-19		Walter Schmid DCF receiver (Kit)
22*2b15cb3dSCy Schubert	8.20-23		Conrad DCF77 receiver module + level converter (Kit)
23*2b15cb3dSCy Schubert	8.24-27		TimeBrick (limited availability ask
24*2b15cb3dSCy Schubert				   time@informatik.uni-erlangen.de)
25*2b15cb3dSCy Schubert	8.28-31		Meinberg GPS166
26*2b15cb3dSCy Schubert	8.32-35		Trimble SV6 GPS receiver
27*2b15cb3dSCy Schubert127.127.9.x		MX4200 GPS receiver
28*2b15cb3dSCy Schubert127.127.10.x		Austron 2201A GPS Timing Receiver
29*2b15cb3dSCy Schubert127.127.11.x		Kinemetrics Truetime OM-DC OMEGA Receiver
30*2b15cb3dSCy Schubert127.127.12.x		KSI/Odetecs TPRO-S IRIG-B / TPRO-SAT GPS
31*2b15cb3dSCy Schubert127.127.13.x		Leitch: CSD 5300 Master Clock System Driver
32*2b15cb3dSCy Schubert127.127.14.x		MSFEES
33*2b15cb3dSCy Schubert127/127.15.x		TrueTime GPS/TM-TMD
34*2b15cb3dSCy Schubert127.127.16.x		Bancomm GPS/IRIG Ticktock
35*2b15cb3dSCy Schubert127.127.17.x		Datum Programmable Time System
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