Symmetricom XLi IEEE 1588 User Manual

XLi IEEE 1588 Clock 101
997-01510-03, Rev. C, 12/12/2006
2
5
1
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
F110<S><Code><S><Source><S><Impedance><S><Type><S><Sign><S><Delay><S><Mode>
<S><Bypass><CR><LF>
Or
F110<S>TIET<S><Impedance><S><Sign><CR><LF>
(when TIET option is enabled and J1 is set to TIET)
Where the F110 entry and request formats are defined as:
For example, enter:
F110<CR>
The XLi responds (example):
F110 IRIG B PRIMARY 50 DC NEGATIVE 66161 us SYNC GEN OFF<CR><LF>
F
= ASCII character F.
110 = function number.
TIET = ASCII character string “TIET” for configuring J1 for TIET measurement
<S> = ASCII space character one or more
<Code> = Input Code: IRIG-A, IRIG-B, NASA 36
Note: F110 Input Code Notes: (1) IRIG doesn't contain “year” information. Enter the current
date using F3 before using IRIG as a primary reference source. Failure to do so can cause
the incorrect time information to be distributed
<MeasType> = TIET TIME, TIET EVENT
Note: If TIET TIME or TIET EVENT is configured, the timestamp(s) of the rising edge of the
J1 input signal will be displayed each second. Up to 100 timestamps can be spooled. ctrl-C
exits this operation.
<Source> = Clock source: PRIMARY, SECONDARY, STANDBY (Set IRIG to STANDBY for TIET)
<Impedance> =
100K, 50 (50
Ω impedance is selectable with DC type only)
Note: If 50 Ω impedance is specified with AM modulation format, XLi will overwrite the
impedance input 50
Ω with 100 kΩ.
<Type> =
Code Type: AM, DC (AM type is selectable for 100 k
Ω impedance only)
Note: For DC code, set the appropriate level for the length of the input cable. Short runs
(<200 ft.) get 100 k
Ω, and long runs (>200 ft.) get 50 Ω.
<Sign> = Code Sign: POSITIVE, NEGATIVE (Note: negative not supported with TIET)
<Delay> = Propagation Delay: 0-99999 μS
<Mode> = IRIG Mode: SYNC GEN, (future: TRANSLATOR)
<Bypass> = Error bypass: OFF, 1 FRAME, 2 FRAMES, 3 FRAMES, 4 FRAMES, 5 FRAMES, 6
FRAMES, 7 FRAMES, 8 FRAMES, 9 FRAMES, 10 FRAMES
<CR><LF> = line terminator, either a carriage return and line feed for output strings or a
carriage return only for input strings.

Symmetricom XLi IEEE 1588 Specifications

General

Brand	Symmetricom
Model	XLi IEEE 1588
Category	Clock
Language	English