Strata CTX Configuration

Universal Slot PCBs

Table 2-9 CO Line PCBs (continued)

ISDN U-type Basic Rate Interface Unit (RBUU)

Provides two ISDN BRI, U point circuits (2B+D each).

Interface Options: Network and/or station side.

Host for the RBUS.

Network side requires a dealer-supplied NT1 interface.

 

 

Basic Rate Interface Subassembly (RBUS)

Interface Options: Network and/or station side.

Attaches to RBUU. One RBUS subassembly per

 

RBUU.

 

Two ISDN BRI, U point circuits (2B+D each)

 

subassembly for the RBUU.

 

 

 

ISDN Primary Rate Interface Unit (BPTU1 or RPTU2)

Provides (1~8B + D), (1~16B + D), or (1~23B + D)

Interface Options:

channels (lines), depends on system programming.

ISDN PRI

BPTU or RPTU2 is required for QSIG Networking.

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.

Interface Options:

With RCOS, provides eight CO analog loop start line

CO analog loop start lines

circuits.

 

 

 

Loop Start CO Line Interface Subassembly (RCOS)

Same as RCOU.

Provides four additional Loop Start CO lines. One

 

RCOS subassembly per RCOU.

 

 

 

T1/DS-1 Interface Unit (RDTU2)

 

Provides T1 (DS1) Interface: 1~8, 1~16, or 1~24

Interface Options:

channels (lines), depends on system programming.

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 m,

Remote cabinet not supported by main system reserve

multi-mode fiber.

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

 

 

Strata CTX Configuration

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).

 

 

Strata CTX I&M 06/04

2-17

Page 63
Image 63
Toshiba CTX28 CO Line PCBs Isdn U-type Basic Rate Interface Unit Rbuu, Isdn Primary Rate Interface Unit BPTU1 or RPTU2