Alarm Output; Time Code Output Irig-B120 W/ Ieee1344 - Symmetricom XLi User Manual

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ALARM Output

High Z:
1
High Z:
Low Z:
Drive:
Max. Voltage:
Max. Current:
Quantity:
Connector:

Time Code Output IRIG-B120 w/ IEEE1344

The selectable Code output has an additional selection for IRIG-B-120 w/ IEEE1344. Configuration is via
the Keypad / Display, RS232/422 and the Network port via telnet and HTML.
IRIG-B-120 IS DEFINED IN IRIG STANDARD 200-04 AS:
• Format B 100 pps
• 1 = Sine wave amplitude modulated
• 2 = 1KHz carrier/1mSec resolution
• 0 = BCD TOY,CF,SBS
IEEE1344 IS DEFINED IN IEEE1344-1995(R2001) ANNEX F AS:
IRIG-B format, <sync>SS:MM:HH:DDD<control bits> <binary seconds>
where
<sync>
SS
MM
HH
DDD
<control>
<binary seconds>
12
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Power off
Alarm (enabled alarm fault)
Normal (no enabled alarm faults)
Open Collector
25 VDC
50 mA
1
Female BNC
is the on time marker
seconds 00-59 (60 during leap seconds)
minutes 00-59
hour of day 00-23
day of year 001-366
27 binary control characters, see Table 1 (reference IEEE1344)
binary seconds of day
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XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
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