Parallel Bcd Msec Output With Time Quality (87-8090) - Symmetricom XLi User Manual

S S S S S S S S S
rate, number of data bits, parity and number of stop bits is configured correctly. See "FTM RS-
422 Display Port" on page 197.
• For pinouts and signal direction, see "FTM RS-422 Display Port" on page 197.
• Please feel free to contact Customer Assistance. See "H: Sales and Customer Assistance" on
page 295.

Parallel BCD mSec Output with Time Quality (87-8090)

This Parallel BCD module provides provides 42 lines of parallel BCD time data representing 100's of
days to units of milliseconds, four time quality lines that provide an estimate of the time error, and two
data valid strobes.
Output
Day-of-year, time quality flags, 1PPS strobe and 1KPPS strobe.
Outputs (TTL):
Qty:
Connector:
Physical:
CPU-Aware:
Compatibility
1 PPS STROBE:This line goes to the high state between the second and 100 ns after the second. It
remains high for 500 ms.
1 KPPS STROBE:This line goes to the high state between the millisecond and 100 ns after the
millisecond. It remains high for 500 us.
50-pin D MILLISECONDS CONNECTOR PIN ASSIGNMENT
Pin# Output
1 Ground
2 Not used
3 200's of days
4 100's of days
XLi Time & Frequency System
XLi-man, Issue 8, 6/17/2008, Rev. H
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
S S S S S S S S S
LVTTL Levels, 4mA source or sink
Logic Low < 0.4 V
Logic High > 2.4 V
1
Panel-mounted female 50-pin D connector
Single high option bay.
Yes
Legacy XL-DC Parallel BCD Millisecond Module (86-390)
Table 4:
Pin#
26
27
28
29
S S S S S S S S S
Output
10's of min
8's of min
4's of min
2's of min
S S S S S S S S S
2
1
5
S S S S
199