Station Wiring Diagrams - Toshiba Strara CTX Series Installation And Maintenance Manual

MDF PCB Wiring

Station Wiring Diagrams

PSTU
RSTU/RSTU2/
RSTU3/
RDSU/RSTS
ADKU,
BDKU/BDKS
or PDKU
PCOU, RCOU/RCOS
RGLU, RCIU/RCIS,
RBUU/RBUS,
RBSU/RBSS,
RMCU/RCMS
Important! To protect against transient voltages and currents, solid state secondary protectors
must be installed if there is outside wiring, and on all DDI and E&M Tie lines.
These protectors, which contain fast semiconductors in addition to fuses, shall
comply with the requirements for secondary protectors for communication circuits.
Care must be taken to ensure that they are very well grounded to a reliable earth
ground. Install and test the secondary protectors precisely to the installation
instructions of the manufacturer.
Figure 6-1 Strata CTX Secondary Protector Diagram
6-4
Building #1
DDCB
RPTU
CSU
REMU
Earth Ground
Building #2
Standard
Telephone
DDSS
Console
Digital Telephone
or Cordless Base
POW DTR DSR
BATI
MDFB
DDCB
DDI & ISDN PRI Line
Earth Ground
E&M Tie Line
Ground/Loop/ISDN BRI/
E911 CAMA Lines
Secondary protectors – standard voltage
Secondary protectors – low voltage
Strata CTX I&M September 2002
HESB
Digital
Telephone
Console Handset
PC
Attendant
Console
MDFB
5655