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Back Panel
The cable connections for the MultiFRAD are made at the back panel. Two cable connections are
provided and one power supply connection. The Data connector allows the MultiFRAD to be
connected to a non-frame relay device and the Trunk connector connects to a common carrier frame
relay network service or private frame relay networks. The cable connections are shown in Figure 1-
3 and defined in the following sections.
Power Connector
The Power connector is used to connect the external wall type transformer power supply to the
MultiFRAD. The wall transformer plugs directly into an AC outlet.
Data Connector
The Data connector is used to connect the MultiFRAD to a non-frame relay device, such as,
multiplexers, routers, or legacy equipment such as cluster controllers, or an asynchronous device
such as a PC running remote control software. A second use of this connector is to configure the
MultiFRAD. The Data connector is a DB-25 female connector located on the back panel of the
MultiFRAD.
The Data connector interface can be either an RS-232C or V.35 interface. When the V.35 interface is
used, the data shunt has to be moved from the default RS-232 position to the V.35 position. Refer to
"Shunt" in this chapter for changing the data shunt. Refer to Appendix A for cabling requirements in
V.35 mode.
Trunk Connector
The Trunk connector is used to connect the MultiFRAD to a 56K DDS circuit that provides the local
access to the frame relay service. This connector is an RJ-48 keyed jack on the back panel.
FR111A
Data
Power
Figure 1-3. Back Panel
Chapter 1 - Introduction and Description
Trunk
9
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