T1

RDTU Installation

Ferrite Core

Install the Ferrite core provided with the RDTU3 PCB, as shown in Figure 8-2. This core is needed to comply with FCC requirements.

RDTU3

Side View

RJ-45 Network/

CSU Interface Jack

CAT5 Shielded Cable

6306

Note: The Ferrite core must be as close as possible to the PCB.

One Turn

Figure 8-2 RDTU3 Ferrite Core Installation

RDTU3 Cabling

Each RDTU3 T1 PCB requires the following connecting equipment and cables to provide service (see the following sections and Figure 8-3).

RDTU3 to Network

If the RDTU3 must interface to a public telephone network or common carrier T1 circuit, the RDTU3 must be connected to a CSU. Use the RDTU3-CBL-KIT to connect the RDTU to the CSU. The function of the CSU is to provide the required interface between the RDTU PCB and the Public Telephone or Carrier Network. The interface created by the CSU normally provides protection and capabilities for loop back testing both the Network equipment and the RDTU PCB.

Connecting the CSU to the Network Interface Unit (NIU) is specified by the CSU manufacturer— see CSU installation documentation. The RDTU3-CBL-KIT supplies the cables and connectors required to connect the CSU to the NIU.

T1

Strata CTX I&M 06/04

8-5

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Toshiba CTX28 manual RDTU3 Cabling, RDTU3 to Network