EndRun Sonoma N12, User Manual

Page: 166 / 174

S o n o m a U s e r M a n u a l 150
A P P E N D I X H
151 S o n o m a U s e r M a n u a l
S P E C I F I C A T I O N S
Options:
See Chapter 10 - Options for more information.
Optional PTP/IEEE-1588 specifications are listed above.
DC Power Input:
12 VDC (10-20 VDC), 6.0A maximum.
24 VDC (19-36 VDC), 3.0A maximum.
48 VDC (37-76 VDC), 2.0A maximum.
125 VDC (70-160 VDC), 1.0A maximum.
3-position terminal block on rear panel: +DC IN, SAFETY GROUND, -DC IN
(Floating power input: Either “+” or “-” can be connected to earth ground.)
See Chapter 10 - Options, DC Power Input for more information.
Dual-Redundant Power Supplies:
Any combination of Universal AC and/or DC supplies.
See Chapter 10 - Options, Dual Redundant Power Supplies for more information.
1 PPS Output: Positive TTL pulse into 50 Ω or RS-422 levels.
Width: User selectable to 20 us, 1 ms, 100 ms, 500 ms.
Accuracy: < 30 nanoseconds RMS to UTC(USNO) when locked.*
Stability: TDEV < 20 ns, τ < 10
5
seconds.
Connector (TTL): Rear-panel BNC jack labeled “1PPS”.
Connector (RS-422): Rear-panel DB-9M connector labeled “1PPS RS-422”.
Pinout (RS-422): Pin 3 is +signal. Pin 6 is -signal. Pin 5 is GND.
*See GPS-UTC Timing Specifications for details.
Note: To change the pulse width refer to Chapter 10 - Options .
AM Code Output: 1 V
RMS
into 50 Ω , 1 KHz carrier.
Signal: Amplitude-modulated (AM), 3:1 ratio.
Format: User selectable to IRIG-B (120/IEEE-1344, 122, 123), NASA-36, 2137.
Connector: Rear-panel BNC jack labeled “AMCODE”.
Note: To change the time code format refer to Chapter 10 - Options .
DC Code Output: Positive TTL pulse into 50 Ω .
Signal: TTL, DC-shift.
Format: User selectable to IRIG-B (000/IEEE-1344, 002, 003), NASA-36, 2137.
Connector: Rear-panel BNC jack labeled “DCCODE”.
Note: To change the time code format refer to Chapter 10 - Options .
Programmable Pulse Output (PPO): Positive TTL pulse into 50 Ω on BNC jack.
User-Selectable Output Type: On-time pulse rate.
Rate: User selectable to 1, 10, 100, 1K, 10K, 100K, 1M, 5M, 10M PPS, IPPM, 1PP2S.
Duty Cycle: 50% except 1PPS which mimics the 1PPS Output defined above.
Accuracy: < 10
-13
to UTC for 24-hour averaging times when locked.
Stability:
σ
y
(
τ
) < 10
-9
for
τ
< 10
2
seconds,
σ
y(
τ
) < 10
-7
/
τ
for
τ
> 10
2
seconds.
Connector: Rear-panel BNC jack labeled “PPO”.
Note: To change the output selection refer to Chapter 10 - Options .