= Zyfer GPStarplus Receiver
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== Synopsis

["verse",subs="normal"]
Name: zyfer
Reference ID: GPS
Serial Port: /dev/zyfer__u__; 9600 bps 8N1

== Description

This driver supports the http://www.zyfer.com/[Zyfer GPStarplus]
receiver.

The receiver has a DB15 port on the back which has input TxD and RxD
lines for configuration and control, and a separate TxD line for the
once-per-second timestamp.

Additionally, there are BNC connectors on the back for things like PPS
and IRIG output.

== Additional Information

link:refclock.html[Reference Clock Drivers]

== Driver Options

+unit+ 'number'::
  The driver unit number, defaulting to 0. Used as a distinguishing
  suffix in the driver device name.
+time1+ 'time'::
  Not used by this driver.
+time2+ 'time'::
  Not used by this driver.
+stratum+ 'number'::
  Specifies the driver stratum, in decimal from 0 to 15, with default 0.
+refid+ 'string'::
  Specifies the driver reference identifier, an ASCII string from one to
  four characters, with default +GPS+.
+flag1 {0 | 1}+::
  Not used by this driver.
+flag2 {0 | 1}+::
  Not used by this driver.
+flag3 {0 | 1}+::
  Not used by this driver.
+flag4 {0 | 1}+::
  Not used by this driver.
+subtype+::
  Not used by this driver.
+mode+::
  Not used by this driver.
+path+ 'filename'::
  Overrides the default device path.
+ppspath+ 'filename'::
  Not used by this driver.
+baud+ 'number'::
  Overrides the default baud rate.

== Configuration Example

----------------------------------------------------------------------------
refclock zyfer
----------------------------------------------------------------------------

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