Toshiba CTX28 manual Worksheet Description, CTX670 Remote Cabinet Configuration Considerations

Strata CTX Configuration

Worksheet Description

Worksheet Description

These configuration worksheets cover Strata CTX telephones, PCBs and cabinets; they do not cover other peripheral equipment requirements.

Knowledge of all customer telephone requirements is needed to complete the worksheets. These include all telephone sets, CO line types and Strata CTX system feature options for the main location (with the Strata CTX Base Cabinet) and each remote location. A set of worksheets for the main system location and a separate set of worksheets for each remote location must be completed.

CTX670 Remote Cabinet Configuration

Considerations

Several items must be considered when configuring a CTX670 system with Remote Cabinets. (CTX100 systems do not support remote cabinet configurations).

1.Each location must be configured independently. Separate worksheets are needed for each location to break down the line, trunk and service circuits by locations. Use the rules provided in this chapter to determine the required quantities of PCBs.

2.Estimate the number of cabinets according to normal configuration worksheets.

3.Account for RRCU PCBs at each remote location (see Table 2-52 on page 2-38in Worksheet 6). An RRCU PCB can support up to two Expansion Cabinets at one remote location. For example, 18 PCBs at one remote location would require two Expansion Cabinets and one RRCU card for the remote location.

4.If necessary, adjust the number of cabinets required. The maximum number of Expansion Cabinets per system is six. The maximum number of remote locations is also six. The maximum number of cabinets supported by one fiber connection is two.

5.Determine the total number of RRCU PCBs required at all remote locations (see Table 2-52 on page 2-38in Worksheet 6). Add the same number of RRCU cards to the configuration of the Base Cabinet.

6.Validate the configuration. A valid configuration answers “yes” to the following questions.

•Do all cabinets (local and remote) comply with power limitations? The RRCU has a power factor of 4.0. See Table 2-58 on page 2-43in Worksheet 7.

•Are there six or fewer remote locations?

•Are there six or fewer RRCU cards in the Base Cabinet?

7.Order one cabinet cover (BCTC) and cable mesh shield (B50MT) for each remote location.

8.Digital Trunks – A Remote Cabinet can support all PCBs that can be installed in a local Expansion Cabinet, including digital trunk cards. However, the system cannot derive network clock synchronization from a digital trunk installed in a remote cabinet. This requires a digital trunk installed in the Base Cabinet or in a local Expansion Cabinet connected to the Base by a standard ribbon cable. For each Remote Cabinet location, local trunks may be required for correct 911 service.

Component Worksheets

Fill in Worksheets 1~8 for each location to determine system cabinet and PCB requirements for:

Customer Name _____________________ Location Description_____________________

Main Location _______________ Remote Location 1___ 2___ 3___ 4___ 5___ 6___

2-22 Strata CTX I&M 06/04