Universal Slot PCBs
RDTU – T1 Interface Unit
Strata DK I&M 6/00
9-55
Universal Slot PCBs
RSSU – PC Interface Unit
System:
DK40i Expansion KSU, DK424, DK424i
Circuits per PCB:
one RS-232 connection
Interfaces with:
TTY jack
Older Version(s):
none
The RSSU contains one RS-232 serial port for connecting an SMDI, SMIS processor,
DKi Admin/DKi Backup PC or external modem.
One optional RSSU maintenance interface PCB can be used for connecting a maintenance PC or
external modem (local or remote) to the DK40i.
A maximum of three RSSU cards can be supported per DK424 or DK424i.
The RSSU controls, indicators, and interface connectors are shown in
and described in
RSSU Installation
1. Insert the RSSU (component side facing right) into the last slot (“S16”) of the Base KSU/
cabinet if the system only has a Base KSU/cabinet and no Expansion KSUs/cabinets. If there
are Expansion KSUs/cabinets, install the RSSU in the highest slot number in any KSU/
cabinet. Apply firm, even pressure to ensure proper mating of connectors.
Note
In DK40i, RSSU can be installed in any available Expansion KSU.
2. After installing the RSSU, gently pull the PCB outward. If the connectors are properly mated,
a slight resistance is felt.
RSSU Programming
Program 03–Specify Code 41, 42 and 43 for slots that support RSSUs.
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 ...