Pcb Installation Considerations; Pcb Option Considerations; Becu/Bbcu Installation - Toshiba Strara CTX Series Installation And Maintenance Manual

Strata CTX670 Installation

PCB Installation Considerations

The Base Cabinet has ten slots. The first two slots, labelled "B101" and "B102" are reserved for the
common control unit and future feature upgrades. The next eight slots (labelled "S101" ~"S108") are
universal and capable of hosting any of the station, line, and option interface PCBs compatible with the
CTX670 systems.
The Expansion Cabinets have ten universal slots, labelled "S_01," "S_02," etc., where the blank space
of the label represents the number of the Expansion Cabinet. Like the universal slots in the Base
Cabinet, these universal slots are capable of hosting any of the station, line, and option interface PCBs.
Cabinets are numbered from 1 to 7. The Base Cabinet is numbered 1; the first Expansion Cabinet,
number 2; the second Expansion Cabinet, number 3, etc. See the CTX670 Configuration and PCB
Installation section for details.

PCB Option Considerations

CTX670 PCBs can be configured for a variety of hardware and software options. Hardware options are
defined as either internal (generally related to optional PCB subassemblies) or external (related to
connection of peripheral equipment such as background music, voice mail, etc.).
Hardware Options
Some PCBs must be configured for hardware options prior to installation of the PCB in the cabinet.
Configuration instructions for internal hardware options are provided in the individual PCB
installation procedures in this chapter and in
for external hardware options are provided in
Software Options
PCBs are configured for software options through programming, following the installation instructions
of the PCBs. A programming overview for each PCB is provided in the individual PCB installation
procedures in this chapter. Refer to the Strata CTX Programming Manual for detailed programming
instructions.

BECU/BBCU Installation

CAUTION!
Do not remove the plastic insulation shield from the back of the BBCU PCB. If the shield
comes off, do not allow the back of the PCB to contact metal.
The BBCU PCBs are shipped from the factory with the battery jumper in the "Off"
position. Ensure it is moved to the "On" position before installing the BBCU to protect
customer configuration information stored in the BBCU RAM.
When transporting the BBCU PCB, keep the battery jumper in the "On" position in
order to save the configuration data stored in BBCU RAM. (The battery will protect
RAM for approximately six years.) Otherwise, to conserve the lithium battery, move the
jumper to the "Off" position.
When packaging the BECU and BBCU PCBs, use only a nonconducting material
enclosure, such as plain cardboard. Conductive material can cause the internal battery
to discharge and erase memory in the BECU and BBCU PCBs.
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Chapter 4 – PCB Installation. Configuration instructions
Chapter 8 – Peripheral Installation.
Strata CTX I&M September 2002