DK424 Installation
Remote Expansion Cabinet Unit
5-60
Strata DK I&M 6/00
Remote Expansion Cabinet Unit
The RRCU1A PCB enables a DK424 Expansion Cabinet to be located up to three kilometers from
its Base Cabinet. One RRCU1A connects to up to two ribbon-type Data Cables and applies the
inter-cabinet signal to a fiber-optic pair. One fiber pair can support one or two expansion cabinets
in one remote location using one RRCU1A in the Base Cabinet and another in the Remote
Expansion Cabinet.
A DK424 Base Cabinet will support up
to five RRCU1A PCBs. A DK424 will
support up to six Remote Expansion
Cabinets.
An inter-cabinet Data Cable in the Base
Cabinet is attached to an RRCU1A
which converts the signal and uses an
LED source to apply the signal to 500
MHz/km multi-mode fiber. Another
RRCU1A in the Remote Expansion
Cabinet receives the LED signal,
converts it back to its original form and
applies it to a ribbon Data Cable
connected to the Remote Expansion
Cabinet. See
This is a hardware solution and has no
effect on software or administration.
Remote cabinets support all line and
trunk interfaces.
Network clock signals can only be
derived from digital trunks installed in
the Base Cabinet (Master) location.
RRCU1A cards are used at both the
Base (Master) and Remote (Slave)
Cabinet locations. The card set consists
of an RRCU1A PCB and its ROMS1A
daughter board. The RRCU1A connects
to the inter-cabinet Data Cables, holds
the Remote/Slave option jumpers, and has an RS-232C port for monitoring the fiber connection.
The ROMS1A daughter board has an SC-type fiber connector, a connector for control of two
8-circuit DPFT units, and status LEDs.
Fiber Optic
Connection
Up to
3 Kilometers
(Dealer Supplied)
Expansion Cabinet (2)
Base Cabinet
Remote Expansion Cabinet (4)
MEBU
Remote Expansion Cabinet (3)
4532
1 (M1)
2 (S1)
3 (M2)
2
3
4
5
6
7
Optical Module
4 (S2)
1 (M1)
2 (S1)
3 (M2)
Optical
Module
4 (S2)
Local DK424 Cabinets
Remote DK424 Cabinets
Figure 5-39 Remote Expansion Cabinet Connection
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 ...