Toshiba Strara CTX Series - Strata CTX ISDN Reference Model

ISDN Interfaces
5-2
Strata CTX I&M September 2002
Strata CTX ISDN Reference Model
A block diagram of the Strata CTX ISDN PCBs and reference points is provided in Figure 5-1.
Figure 5-1 ISDN Reference Model
CTX (NT2)
R
S
T
R
SLT
DKT
TE-1-S
(Voice or Data)
SLT
TA-S
RSTU
PDKU
RBSU/RBSS
(NTs
(P-MP)
RBSU
RPTU (TE)
NT1
(NT1)
Telco-
supplied
Jacks
R, T, S, and U are ISDN standard reference points
Customer Premises Equipment
Public Switched Telephone Networ
k
(PSTN)
5432
PC
P-P = Point-to-Point
P-MP = Point-to Multipoint
(passive bus)
TE-1 = Terminal Equipment, Type 1
TA = Terminal Adapter
Demarcation Point
U