Siemens Simatic S7-1500R System Manual page 133

Wiring
5.9 Connecting interfaces for communication with S7-1500H
Inserting synchronization modules and connecting fiber-optic cables
To insert the synchronization modules and connect the fiber-optic cables, follow these steps:
1. Lift up the front right-hand cover on the H-CPU.
2. Remove the blanking plugs from the synchronization modules.
3. Push the two synchronization modules up into the module slots at the H-Sync interfaces
X3 (port 1) and X4 (port 1) as far as they will go. You should hear the synchronization
modules click into place. Then push the clip on each synchronization module to the left.
Result: The synchronization modules are locked into place.
Figure 5-11
4. Hold the pre-assembled connectors of the redundancy connection by the housing. Push
the connectors into the sockets of the synchronization modules. You should hear the
connectors click into place.
132
Inserting and locking synchronization modules
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA