Toshiba Strata CTX100 User Manual

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Universal Slot PCBs
Functional Block Diagrams
Strata CTX General Description    11/02
23
Figure 8
CTX100 and CTX670 CO Line Side Functional Block Diagram
RDTU2 
•  2T1 / DS1(24 Channels / Lines)
•  Loop Start, Ground Start, Tie, DID
• Digital 
Voice 
Lines
Channel
Service
Unit (CSU)
25-pair Amphenol
TOSHIBA NDTU Cable
DB15
PLL Synchronization Circuits
2
RCOU
4 Loop Start Co Lines (Analog)
RGLU2
4 Loop or Ground Start CO Lines (Analog)
RCOS
 (Optional PCB on RCOU Only):
4 Loop Start CO Lines (Analog)
RCIU2
RCIS
4 Caller ID Circuits
4 Caller ID Circuits
(Two 4-Wire Modular Jacks)
MDF
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
1
RDDU
4 DID CO Lines (Analog)
REMU
4 E&M Tie Lines (Analog) 
(REMU, Four 8-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
Secondary Protectors
2
RPTU1 or RPTU2
ISDN PRI (23B+1D channels)
Digital Voice/Data
Toshiba RPRI-CBL-KIT
Channel
Service
Unit (CSU)
8-wire Modular Jacks
2
ISDN BRI (U)
2 Circuits (NT-1  )
Voice/Data  (2B+D)
RBUU
RBUS
 
ISDN BRI (U)
 2 
Circuits 
(NT-1)
 Voice/Data 
 
(2B+D)
U
3
U
3
8-wire Modular Jacks
8-wire Modular Jacks
ISDN BRI (S/T)
2 Circuits (TE)
Voice/Data  (2B+D)
RBSU
NT1 per circuit
2
U
3
T
3
8-wire Modular Jacks
RMCU
Trunk Circuits for E911
RCMS    2 Trunk Circuits
RCMS    2 Trunk Circuits
CAMA Line (2-wire Modular Jacks)
CAMA Line (2-wire Modular Jacks)
Network Demarcation Point
Remote Location(s)
Remote Location(s)
BVPU
Voice Over IP Unit (4 Circuits)
BDKU/BDKS or PDKU  
 (CTX100 & CTX670) or
RRCU
Remote Cabinet Interface Card
Optical Fiber Cable 3 km/(1.86 mi.)
10Base-T
CTX Expansion  
Cabinets
Digital 
Telephone
MCK 
EXTender
MCK 
Gateway
IP Network
IP Network
5903
4
Central Office 
Centrex
PBX
Common Carrier
Other Telephone System
E911 Public Safety Answer
Point (PSAP)
Priviate Networking Lines










Data and Speech Highway
QSIG networks (RPTU2)
4
Page
Scroll
Mode
Feature
Msg
Mic
Redial
Spdial
Spkr
Cnf/Trn
Hold
Vol
1. RCIU2/RCIS tip/ring cross
    connected to RCOU, RCOS, or
    RGLU tip/ring at MDF.
2. Customer-supplied equipment.
3. U, S, T, R, are ISDN reference
    model termination points.
4. RPTU2 is required for QSIG
    Networking.
CTX / DK
BVPU
(CTX100 only)
ADKU
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