Instruction manual
Universal Slot PCBs
Summary of PCBs and Subassemblies
Strata DK General Description 6/00 45
Summary of PCBs and Subassemblies
Table 28 provides a summary of the universal slot PCBs and available subassemblies.
Table 28 PCB Circuits, Interface Options and Connectors
PCB Subassembly Circuits Interface Options Connector
RPTU
(DK40i and DK424i)
1 circuit/ISDN PRI
DK424i: 23 B channels/
1 D channel
DK40i: 8 or 12 B channels/1 D
channel
POTS
FX
Tie (senderized)
Tie (cut through)
OUTWATS (intra-LATA)
OUTWATS (inter-LATA)
InWATS
RJ48C or RJ48X
ISDN TIA-568A
RBSU
2 ISDN BRI S/T point circuits (NT
or TE). Each circuit is 2B+1D.
(Host for the RBSS)
Network and/or station side RJ45, ISDN TIA-568A
attaches to
RBSU
RBSS
2 ISDN BRI, S point circuits
(2B+D each)
Station side only
1 RBSS subassembly per RBSU
RJ45, ISDN TIA-568A
RBUU
2 ISDN BRI, U point circuits
(2B+D each). Host for the RBUS.
Network and/or station side RJ45, ISDN TIA-568A
attaches to
RBUU
RBUS
2 ISDN BRI, U point circuits
(2B+D each) subassembly for the
RBUU.
Network and/or station side
1 RBUS subassembly per RBUU.
RJ45, ISDN TIA-568A
RDTU2
1~8, 1~12, 1~16, or 1~24
channels (lines), depends on
system programming
Loop start lines
Ground start lines
Tie lines (wink or immediate)
DID/DOD lines (wink or immediate)
2-pair amphenol
RJ48M
(All PCB amphenol
connectors are female)
RMCU
2 E911 CAMA circuits with the 1
RCMS or 4 with 2 RCMSs.
(DK40i and DK424i only)
E911 CAMA lines
RJ11C modular
attaches to
RMCU
RCMS 2 E911 CAMA circuits
Up to 2 RCMSs per RMCU for 4
CAMA lines max.
REMU
4 Tie line circuits
E&M Tie lines
2- or 4-wire transmission
Type I signaling
Type II signaling
Immediate start
Wink start
REMU (8-wire modular
jack)
2- or 4-wire/type I or II
KCDU
(DK40i only)
2 CO line circuits/
4 digital telephone circuits
CO loop start lines
Digital circuits same as PDKU,
except no DDSS
RJ14C modular (CO Line
circuits)
25-pair amphenol (digital
phone circuits)
RCOU
4 CO line circuits (lines)
With RCOS:
8 CO line circuits (lines)
CO loop start lines
RJ14C modular
attaches to
RCOU
RCOS
Provides four additional Loop
Start CO lines.
1 RCOS subassembly per RCOU










