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Figure 5: Timing Interface Ports
1
GNSS port
—
BITS—Building-integrated timing supply
2
—
(BITS) port
Here's a definition of the ports and labels on the timing interface ports. See
description of the timing ports LED indicators.
• GNSS antenna port—Connects to a GNSS antenna.
• BITS—Building-integrated timing supply (BITS) external clocking interface for connecting to external
clocking devices.
• 10MHz (I/O)—10-MHz input and output clocking port for connecting to external clock signal
sources. The clocking port synchronizes clock inputs based on the clock's priority.
• PPS—1-pulse per second (PPS) output connector for connecting to external clock signal sources. The
clocking port synchronizes clock inputs based on the clock's priority.
Table 4: Timing Ports LEDs on the ACX7348 Chassis
LED
Color
GNSS
Unlit
Green
3
—
State
Off
On steadily
10MHz (I/O), 1PPS (OUT) port
Table 4 on page 14
Description
GNSS signal is not locked.
GNSS signal is locked.
14
for a
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