HBM MX840B - Page 30

Introduction
30 I3031-14.0 HBM: public Quantum
X
nized. The coding includes the time, year and optionally
the seconds of the day.
Comparison of synchronization mechanisms
Feature IEEE1394b
FireWire
Ethernet
(PTPv2)
Ethernet
(NTP)
EtherCAT® IRIG-B
Synchroniza
tion with
other device
types
QuantumX
only
QuantumX
B module
GENESIS
Cameras
QuantumX,
MGCplus
other
interrogators
All
EtherCAT®
nodes
All IRIG-B
nodes
Max. dis
tance
between
QuantumX
modules
5 m (40 m
with
IEEE1394b
FireWire ex
tender,
500 m via
optical fiber)
100 m elec
trical and up
to a few
100 m opti
cal
100 m elec
trical, several
km optical,
variable with
WLAN
100 m -
Number of
modules to
be synchron
ized
24 Unlimited Unlimited CX27 re
quired, un
limited
Unlimited
MX440B,
MX840B
required,
Synchroniza
tion accuracy
< 1 s < 1 s
(with recom
mended
PTPv2
switches up
to 100 ns)
100 s to 10
ms
< 1 s < 1 s
Synchroniza
tion settling
time
Immediate Up to 20 s
(on initial
startup)
Up to 30 min
during first
start, up to
2 min during
restart
Immediate Immediate