SynchLink 4-port Splitter Block
SynchLink Overview
We designed the SynchLink system to provide the synchronization and coordination
of drive and motion control applications that are based on ControlLogix and
PowerFlex 700s stations.
About the SynchLink 4-port Splitter Block
The 4-port splitter block converts electrical signals coming from the base block to
optical signals and retransmits them simultaneously through four output ports. The
splitter block is DIN rail-mounted and is housed in a two-piece plastic enclosure.
Figure 1 identifies the components of the splitter block.
Figure 1 - Components of the splitter block
Protective caps
Channel 1 fiber port
Right-side and Left side (not shown)
Channel 2 fiber port
Module locking tab
backplane connectors
Channel 4 fiber port
Channel 3 fiber port
Publication 1751-IN002A-EN-P - March 2001
SynchLink 4-port Splitter Block
Mounting Dimensions
Figure 3 provides mounting dimensions for the splitter block.
Figure 3 - Mounting dimensions
4.084 in.
(104 mm)
3.94 in.
(100 mm)
2.76 in.
(70.1 mm)
3.6 in.
(91.4 mm)
3.81 in.
(98 mm)
Publication 1751-IN002A-EN-P - March 2001
SynchLink 4-port Splitter Block
Hazardous Location information
The following information applies when operating this equipment in
hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division
2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each
product is supplied with markings on the rating nameplate indicating the hazardous
location temperature code. When combining products within a system, the most
adverse temperature code (lowest “T” number) may be used to help determine the
overall temperature code of the system. Combinations of equipment in your system
are subject to investigation by the local Authority Having Jurisdiction at the time
of installation.
• Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
• Do not disconnect connections to this equipment unless
power has been removed or the area is known to be
nonhazardous. Secure any external connections that mate
to this equipment by using screws, sliding latches, threaded
connectors, or other means provided with this product.
• Substitution of components may impair suitability for Class
I, Division 2.
• If this product contains batteries, they must only be
changed in an area known to be nonhazardous.
Publication 1751-IN002A-EN-P - March 2001
SynchLink 4-port Splitter Block
Communication Rate
5M bit/s
Splitter Block Power Consumption
5V dc input from 1751-SLBA
0.300 A @ 5.1V dc
Environmental Conditions(1)
Operating Temperature
0ºC - 60ºC
Storage Temperature
-40ºC - 85ºC
Relative Humidity
5 to 95%, 0ºC - 60ºC non-condensing
30g peak acceleration, 11 (± 1)ms pulse width
50g peak acceleration, 11 (± 1)ms pulse width
Tested 5 g @ 10 - 500Hz per IEC 68-2-6
Fiber Type
200/230 micron HCS (Hard Clad Silica)
Fiber Optic Cable
Fiber Termination Type
Versalink V-System
Cable assemblies can be ordered from Allen-Bradley, catalog
number 1403-CFxxx (xxx = length in meters); or from Lucent
Technologies, Specialty Fiber Technologies division.
Maximum Length
300 meters
Minimum Length
1 meter
Agency Certifications
Listed Industrial Control Equipment
When product is marked:
Certified Process Control Equipment
Certified Class I, Division 2, Group A, B, C, D
Marked for all applicable directives
marked for all applicable acts
This product must be mounted within a suitable system enclosure to prevent personal injury resulting from accessibility to
live parts. The interior of this enclosure must be accessible only by the use of a tool. This industrial control equipment is
intended to operate in a Pollution Degree 2 environment, in overvoltage category II applications, (as defined in IEC
publication 664A) at altitudes up to 2000 meters without derating.
Publication 1751-IN002A-EN-P - March 2001