Toshiba Strara CTX Series, Installation And Maintenance Manual, Page: 34 / 290

Strata CTX Configuration
1-20
Strata CTX I&M September 2002
Figure 1-8 CTX100 and CTX670 Station Side Functional Block Diagram
RBSU
2B+1D/Circuit
(2-NT Circuits)
1
1
1
1
1
ADKU
8 Digital Telephone Circuits (max).
(CTX100 only)
BDKU
8 Digital Telephone Circuits and
BDKU/BDKS
16 Digital Telephone Circuits
R48S
(Option PCB,
RDSU/RSTU2
Only) -48 Volt
Loop Supply
RBSS
2B+1D/Circuit
(2-NT Circuits)
Da
ta
a
n
d Sp
e
e
ch Hi
ghwa
y
Digital Telephone (DKT)
Digital Telephone
with BPCI-DI
4
DDCB MDFB
Door Phones and
Lock Controls
TAPI PC
1 Pair Modular Cord
RS-232 Cable
PC
1-pair Modular Cords
DPFT
Modem
RS-232 Cables
Connects audio path to Attd Console
Handset
4
Modular Jacks
Main Distribution Frame (MDF)
Power Failure
Transfer Unit
Power Failure
Standard Telephone (8 max.)
Off-premises Station
Secondary
Protector
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.
Fax
5412
RSTU3
8 Standard
Telephone Circuits
Digital Single Line
Telephone (DKT)
PDKU2
4
8 Digital Telephone Circuits
BATI
VM Ports
Digital Telephone
with DSS Console
Page Scroll Mode Feature
Msg
Mic Redial
Spdial
Spkr Cnf/Trn Hold
Vol
Page Scroll Mode Feature
Msg
Mic Redial
Spdial
Spkr Cnf/Trn Hold
Vol
Page Scroll Mode Feature
Msg
Mic Redial
Spdial
Spkr Cnf/Trn Hold
Vol