Rockwell Automation 1756-SYNCH ControlLogix SynchLink Module User Manual User Manual
Page 18
 
Publication 1756-UM521C-EN-P - July 2004
1-4 What is the 1756-SYNCH module?
Physical Features of the ControlLogix SynchLink Module
Figure 1.1
Table 1.4 lists descriptions of the physical features shown in Figure 1.1.
Backplane 
Connector- Interface 
to the ControlLogix 
system backplane
Status 
Indicators
42744
LINK 
SYNC
OK
Module side view
Module front view
LINK 
COMM
Transmit 
Fiber Port
Receive 
Fiber Port
Table 1.4
Physical Feature:
Description:
Backplane connector
The backplane connector connects the 
module to the ControlLogix chassis 
backplane.
Status indicators
The status indicators display the module’s 
communications and SynchLink system 
status.
Transmit fiber port
The transmit fiber port allows connection 
(via fiber optic cables) to other SynchLink 
modules so the module can send data.
Receive fiber port
The receive fiber port allows connection (via 
fiber optic cables) to other SynchLink 
modules so the module can receive data.