Instruction manual

Universal Slot Circuit Cards
Station, Line and Option Circuit Cards
34 Strata CTX General Description 10/04
ISDN S/T-type Basic Rate Interface Unit (RBSU)
2 ISDN BRI S/T point circuits (NT or TE). Each circuit is
2B+1D. (Host for the RBSS.)
Interface Options: Network and/or station side.
Basic Rate Interface Subassembly (RBSS)
Attaches to RBSU. 1 RBSS subassembly per RBSU.
2 ISDN BRI, S point circuits (2B+D each).
Interface Options: Station side only.
ISDN U-type Basic Rate Interface Unit (RBUU)
Provides 2 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. 1 RBUS subassembly per RBUU.
2 ISDN BRI, U point circuits (2B+D each) subassembly
for the RBUU.
Interface Options: Network and/or station side.
ISDN Primary Rate Interface Unit (RPTU and BPTU)
Provides (1~8B + D), (1~16B + D), or (1~23B + D)
channels (lines), depends on system programming.
RPTU2 is required for QSIG Networking.
Interface Options:
ISDN PRI
POTS
FX
Tie (senderized)
Tie (cut through)
OUTWATS (intra-LATA) and (inter-LATA)
InWATS
QSIG
Loop Start CO Line Interface Unit (RCOU)
Provides 4 CO analog loop start line circuits.
With RCOS, provides 8 CO analog loop start line circuits.
Interface Options:
CO analog loop start lines
Loop Start CO Line Interface Subassembly (RCOS)
Provides 4 additional Loop Start CO lines. 1 RCOS
subassembly per RCOU.
Same as RCOU.
T1/DS-1 Interface Unit (RDTU)
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 2 CTX670 Remote Cabinets. 62.5 mµ, multi-
mode fiber.
Remote Cabinet not supported by main system reserve
power.
Tie Line Unit (REMU2)
Provides 4 analog Tie line circuits.
Interface Options:
E&M Tie lines
2- or 4-wire transmission
Type I and type II signaling
Immediate start
Wink start
Table 21 Option Circuit Cards
Option Interface Unit (BIOU)
Interface Options: Provides Paging output (600 ohm and
3-watt amp), 4 zone paging relays, three MOH interfaces
and 4 control relays (Night Transfer and BGM mute).
Table 20 CO Line Circuit Cards (continued)