Symmetricom XLi IEEE 1588 User Manual

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Auxiliary Reference (Aux Ref):

If a time reference is unavailable, 1 PPS is as stable as the frequency reference (e.g., OCXO, Aux Ref). 

Many IRIG devices only look at the BCD portion of the IRIG frame. Devices that use IRIG A002, B002 
and B122 should be able to synchronize with the XLi’s time code outputs.

Frequency:

1, 5, 10 MHz

Amplitude:

1 Vp-p to 10 Vp-p at 1 k

Ω to ground

Amplitude:

1 Vp-p to 3 Vp-p at 50 

Ω to ground

Impedance:

Configurable 1 k

Ω or 50 Ω to ground

SNR:

>20db

Quantity:

1

Connector:

Female BNC

Factory Configuration:

Disabled

Pulse width:

20 

μS ±1 μS

On time edge:

Rising

Amplitude:

TTL Levels into 50 

Ω

Quantity:

1

Connector:

Female BNC

Format:

IRIG-B 000, IRIG-B 120, IRIG-A 003, IRIG-A 133, and NASA 36

Amplitude (AM):

3 Vp-p, into 50

Ω ±10%

Ratio (AM):

3:1 

±10%

Amplitude (DC):

TTL into 50

Ω

Quantity:

1

Connector:

Female BNC

Phasing:

In phase with carrier 

± 10 μS

Factory setting:

IRIG-B 120