Strata DK I&M 6/00
16-1
ISDN
Inte
rface
s
ISDN Interfaces
16
PRI Overview
♦
PRI is available on DK40i, DK424 and DK424i with Release 4.3 software and above.
For PRI services, the Strata DK uses an RPTU PCB to connect to a Public Switched Telephone
Network (PSTN) PRI line using a UL listed (or CSA certified in Canada) Channel Service
Unit (CSU) in most locations in the U.S. Each RPTU provides 23B + D channels. The
B-channels support CO speech and data connections on the PSTN side only. The RPTU PCB
is shown in
BRI S/T Overview
♦
BRI S/T is available for DK40i and all DK424 or DK424i Release 4.1 and above processors
including RCTUA4, but not for any other DK systems.
For BRI S/T services, the DK424 or DK424i uses an RBSU PCB; the DK40i uses TBSU and
RBSU. Both the RBSU and TBSU provide two BRI S/T circuits to connect to the PSTN BRI
line using an external UL listed NT1; or, on the station-side, connect to:
♦
S-type ISDN telephones and Terminal Equipment (TE-1-S)
♦
S-type Terminal Adapters (TA-S) with non-ISDN devices
Each TE-1-S and TA1-S device can support voice and/or RS-232 switched-circuit data as
shown in
. The station-side BRI S/T circuits are point-to-multipoint.
A subassembly (RBSS) can be attached to the RBSU for two additional BRIs for S-type
station-side connections only. The RBSU PCB and the RBSS subassembly are shown in
. The combination of RBSU and RBSS uses only one slot
to provide up to four BRI S/T circuits.
Note
In DK424 or DK424i, each installed RBSU or RBSS circuit provides a 2B + D connection
and uses a system capacity of two station ports and two CO lines regardless of the circuit
application, even if the circuit is not actually connected. In the DK40i, each TBSU,
RBSU, or RBSS circuit uses two CO lines (no station ports) when configured for the CO
side and two station ports (no CO lines) when configured for the station side.
Summary of Contents for Strata AirLink DK40i
Page 22: ...Introduction Related Documents Media xx Strata DK I M 6 00 ...
Page 48: ...DK14 Installation DK14 Wiring Diagrams 1 26 Strata DK I M 6 00 ...
Page 220: ...DK424 Installation Remote Cabinet Installation Instructions 5 68 Strata DK I M 6 00 ...
Page 262: ...DK424i Configuration Primary Reserve Power Cabinet Hardware 6 42 Strata DK I M 6 00 ...
Page 450: ...Universal Slot PCB Wiring Option Interface PCB Wiring Diagrams 10 42 Strata DK I M 6 00 ...
Page 592: ...Peripheral Installation Enhanced 911 Service E911 12 84 Strata DK I M 6 00 ...
Page 616: ...ACD Installation Spectrum Electronic Wall Boards 13 24 Strata DK I M 6 00 ...
Page 634: ...Fault Finding Fault Isolation Flowcharts 14 18 Strata DK I M 6 00 ...
Page 704: ...ISDN Interfaces ISDN Disconnect Cause Code 16 54 Strata DK I M 6 00 ...