# Name Information Ref.
#9 PPS input
● SMA connector (F)
● 50 Ω termination
● TTL input (5V) / LVTTL input
(3.3V)
"External Reference (GM)" on
page73
Timing output
#10 Timing Output
LED
OK: Green; Warning: Yellow; Critical:
Red
"Timing Input" on page12
#11 PPS output
● SMA connector (F)
● Digital output
● High level output: 3.0V +/-
0.2V
(with 50 Ω termination)
"Virtual Clock Overview" on
page47
#12 10 MHz output
● SMA connector (F)
● Digital output
● High level output: 3.0V +/-
0.2V
(with 50 Ω termination)
"Virtual Clock Overview" on
page47