Toshiba Strara CTX Series Installation And Maintenance Manual page 34

Strata CTX Configuration
BDKU
8 Digital Telephone Circuits and
BDKU/BDKS
16 Digital Telephone Circuits
ADKU
8 Digital Telephone Circuits (max).
(CTX100 only)
4
PDKU2
8 Digital Telephone Circuits
RSTU3
8 Standard
Telephone Circuits
RBSU
2B+1D/Circuit
(2-NT Circuits)
5412
1. Customer-supplied equipment.
2. RSTU2 or above is required for standard telephone message
waiting lamp.
3. U, S, T, R are ISDN reference model termination points.
4. PDKU and RDSU should only be used for 2000-series digital telephones. They do
not support all of the 3000-series digital telephone features, including LCD. The
PDKU also does not support BPCI, BATI and the CTX Attendant Console.
Figure 1-8 CTX100 and CTX670 Station Side Functional Block Diagram
1-20
R48S
(Option PCB,
RDSU/RSTU2
Only) -48 Volt
Loop Supply
RBSS
2B+1D/Circuit
(2-NT Circuits)
Digital Telephone (DKT)
Mode Page Scroll Feature
Msg Spdial
Vol
Mic Redial
Spkr Cnf/Trn Hold
Connects audio path to Attd Console
BATI
4
Handset
Mode Page Scroll Feature
Digital Telephone
4
with BPCI-DI
Msg Spdial
1 Pair Modular Cord Vol
Mic Redial RS-232 Cable
Spkr Cnf/Trn Hold
VM Ports
RS-232 Cables
Modem
1
Fax
1-pair Modular Cords
DPFT
Power Failure
Transfer Unit
Secondary
Protector
Modular Jacks
Main Distribution Frame (MDF)
Digital Single Line
Telephone (DKT)
1
TAPI PC
DDCB MDFB
Door Phones and
Lock Controls
Mode Page Scroll Feature
Digital Telephone
Msg Spdial
Vol with DSS Console
Mic Redial
Spkr Cnf/Trn Hold
1
PC
Power Failure
1
Standard Telephone (8 max.)
1
Off-premises Station
Strata CTX I&M September 2002