Chapter 4 Specifications
Introduction
User’s Guide
4-3
Configuration
Information
There are two ways the 59552A
and 59553A fiber-optic products
can be configured to distribute
signals.
1. The “Combined Mode”
configuration distributes two
signals, one analog and one
digital (such as IRIG-B and
1 PPS respectively).
2. The “Digital Mode” configuration
distributes one digital signal
(such as a 1 PPS signal).
If your application requires
transmission of only one digital
signal, you may choose to use the
Digital Mode. Digital Mode passes
signals with minimal delay
compared to that associated with
combining digital and analog
information.
The factory configures the
instruments for Combined Mode
operation. Selection of Digital Mode
operation requires reconfiguration
of both the 59552A and 59553A by
repositioning of internal jumpers.
Both warranted specifications and
operating characteristics are
covered below. The word “nominal”
appears next to a characteristic to
distinguish it from the warranted
specifications.
System Specifications
Combined Mode
Transmission distance: up to 1 km
Digital edge rate maximum: 1 kHz
Digital edge delay: 2 µs ±5%
(input of 59552A to output of
59553A—excluding delay
through fiber-optic cable; cable
adds approximately 5 ns/meter)
Digital output pulse width: 70 µs
(nominal)
Digital input pulse polarity:
positive or negative (selectable
with internal jumper)
Digital output pulse polarity:
positive or negative (selectable
with internal jumper)
Digital output pulse, risetime/
falltime: less than 5 ns into a
50
Ω
load
Digital output short-term jitter:
5 ns rms (nominal) when signal
transmitted 1 km
Analog input frequency range:
10 Hz to 10 kHz
Analog voltage gain: unity
(input of 59552A to output of
59553A driving 600
Ω
load)
Digital Mode
Transmission distance: up to 1 km
Digital edge rate maximum: 5 Mbd
Digital edge delay,
rising edge:
120 ns (nominal) plus delay
through fiber-optic cable; cable
adds approximately 5 ns/meter
falling edge:
85 ns (nominal) plus delay
through fiber-optic cable; cable
adds approximately 5 ns/meter
Digital output pulse width: output
replicates input subject to delay
contraints noted above
Digital ouput short-term jitter,
rising edge:
3 ns rms (nominal) when
signal transmitted 1 km
falling edge:
2 ns rms (nominal) when
signal transmitted 1 km
Digital pulse, risetime/falltime: less
than 5 ns
Summary of Contents for 59552A
Page 8: ...In This Guide viii User s Guide ...
Page 9: ...1 Getting Started ...
Page 19: ...2 Configuring Your 59552A 59553A ...
Page 41: ...3 Operational Verification ...
Page 47: ...4 Specifications ...
