Module Descriptions, RFL 9508D Digital Section
8.1.5
8.1.6
CHANNEL MODULES
All payload circuits connect to the RFL 9508D through channel modules. In the 9508D, the
teleprotection channel module (PLC-TT) is used to provide for teleprotection commands to the PLC
link.
MODULE ADAPTERS
Each channel module must be used with a Module Adapter, either its own or one that is shared with
another channel module. The RFL 9508D chassis provides 18 rear-access Module Adapter slots, one
corresponding to each of the 18 front-access module slots. All 9508D Module Adapters have the same
connector on their front edge to mate with the back plane. However, different Module Adapters have
different rear edge connectors, providing a variety of interfaces. The insertion of modules and module
adapters is shown in Figure 8-4.
MODULES
(COMMON, CHANNEL, POWER*, ETC.)
9508D DIGITAL CHASSIS
MODULE
ADAPTERS
CONNECTOR(S)
FOR SPECIFIC
INTERFACE
STANDARD
CONNECTOR
TO MATE TO
BACKPLANE
FRONT
BACKPLANE
REAR
EJECT TAB
*NOTE:
POWER SUPPLY MODULES DO NOT
REQUIRE MODULE ADAPTERS
Figure 8-4. Side view of 9508D Digital Chassis, showing insertion of modules and module adapters
RFL 9508D UCC
RFL Electronics Inc.
March 11, 2010
8-6
(973) 334-3100
