Ksu Assembly - Add-On Modules - Comdial DX-80 Installation & Maintenance Manual

installed. (APM4 modules must be installed using 2.5 cm stand offs. These specific length standoffs are
steel color for easy identification.)
5. Install the replacement 408M/E using the brass (2.0cm) standoffs removed from the original.
6. Install all other remaining modules in the order that they were removed, connecting them to the appropriate
408M/E connector.
7. Reconnect CO Line and Station cabling connections as required.
NOTE:
8. Replace the KSU cover and secure with cover screws.
9. Restore KSU power when all wiring is complete.
KSU Assembly – Add-on Modules
Whenever the DX-80 system is expanded, a module must be installed into one of the KSU cabinets. Modules are
connected to the various connectors on the 408M/E. Modules are mounted using standoff posts. Two standoff post
sizes are used in the DX-80. The APM4 modules must be installed using the nickel color 2.5 cm standoffs. All other
modules use brass color 2.0 cm standoffs. Proper use of standoff is imperative to assure proper system operation.
SLOT 4
SLOT 3
SLOT 2
SLOT 1
P7290 IMM
DX-80 I
NSTALLATION AND
The FCC requires that wiring of CO Lines into a Key Service Unit be separated from
wiring of station apparatus into a Key Service Unit. Therefore the installer must use a
separate cable for wiring of stations and CO Lines.
408M Connector
AAM Connector /
VP Connector
408 M / E
M M
AINTENANCE ANUAL
408E Connector
CPM
2-8
MDM
Connectors
AAM Connector
SLOT 5
SLOT 1