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Strata CTX
Configuration
Strata CTX Configuration
Universal Slot PCBs
Strata CTX I&M 06/04 2-17
ISDN U-type Basic Rate Interface Unit (RBUU)
Provides two ISDN BRI, U point circuits (2B+D each).
Host for the RBUS.
Interface Options: Network and/or station side.
Network side requires a dealer-supplied NT1 interface.
Basic Rate Interface Subassembly (RBUS)
Attaches to RBUU. One RBUS subassembly per
RBUU.
Two ISDN BRI, U point circuits (2B+D each)
subassembly for the RBUU.
Interface Options: Network and/or station side.
ISDN Primary Rate Interface Unit (BPTU1 or RPTU2)
Provides (1~8B + D), (1~16B + D), or (1~23B + D)
channels (lines), depends on system programming.
BPTU or RPTU2 is required for QSIG Networking.
Interface Options:
ISDN PRI
POTS
FX
Tie (senderized)
Tie (cut through)
OUTWATS (intra-LATA)
OUTWATS (inter-LATA)
InWATS
QSIG
Loop Start CO Line Interface Unit (RCOU)
Provides four CO analog loop start line circuits.
With RCOS, provides eight CO analog loop start line
circuits.
Interface Options:
CO analog loop start lines
Loop Start CO Line Interface Subassembly (RCOS)
Provides four additional Loop Start CO lines. One
RCOS subassembly per RCOU.
Same as RCOU.
T1/DS-1 Interface Unit (RDTU2)
Provides T1 (DS1) Interface: 1~8, 1~16, or 1~24
channels (lines), depends on system programming.
Interface Options:
T1
Loop start lines
Ground start lines
Tie lines (wink or immediate)
DID/DOD lines (wink or immediate)
Remote Expansion Cabinet Unit (RRCU)
Supports two CTX670 remote cabinets. 62.5 mµ,
multi-mode fiber.
Remote cabinet not supported by main system reserve
power.
Tie Line Unit (REMU2)
Provides four analog Tie line circuits. Interface Options:
E&M Tie lines
Two- or four-wire transmission
Type I signaling
Type II signaling
Immediate start
Wink start
Table 2-10 Option PCBs
Option Interface Unit (BIOU) Interface Options:
Provides Paging output (600 ohm and three-watt amp),
four zone paging relays, three MOH interfaces and four
control relays (Night Transfer and BGM mute).
Table 2-9 CO Line PCBs
(continued)