Remote Cabinet Configuration Guidelines - Toshiba DK14 Installation And Maintenance Manual

DK424 Configuration
Worksheet 3 – System PCB Assignment Guide

Remote Cabinet Configuration Guidelines

Several new items must be considered when configuring a system with Remote Cabinets.
1. Each location must be configured independently. Break down the line, trunk and service
circuits by locations and use the rules provided elsewhere in this chapter to determine the
required quantities of cards.
2. Estimate the number of cabinets according to normal configuration rules.
3. Account for RRCU1A cards at each remote location. An RRCU1A card can support up to two
Expansion Cabinets at one remote location. For example, 20 PCBs at one location would
require three Expansion Cabinets and two RRCU1A cards. See
4. If necessary, adjust the number of cabinets required. The maximum number of Expansion
Cabinets per system is six. The maximum number of locations is five. In a maximum
configuration, at least one location will have two Expansion Cabinets.
5. Calculate the total number of RRCU1A cards required at all remote locations. Add the same
number of RRCU1A cards to the configuration of the base cabinet. If necessary, add a cabinet
at the base location to hold the cards displaced by the RRCU1As in the base cabinet.
6. Check the validity of the configuration. A valid configuration will generate positive answers to
the following questions.
o
o
o
7. Order one RDCL Data Cable Kit for each RRCU PCB. The kit includes one replacement door,
one cable bracket and two data cables.
8. Order one cabinet cover for each remote location.
9. Digital Trunks. A Remote Cabinet will support all PCBs that may 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.
4-30
Do all cabinets (local and remote) comply with power limitations? The RRCU1A has a
power factor of 4.5.
Are there six or fewer remote locations?
Are there five or fewer RRCU1A cards in the base cabinet?
Figure 5-39 on Page 5-60.
Strata DK I&M 5/00