Specifications
Periphera
ls
5
0003097 Revision A 3
7
Programmable Key Module 48
The Programmable Key Module 48 (PKM48) provides 48 additional feature keys for 
SUPERSET 4025, SUPERSET 4125, and SUPERSET 4150 telephones. Each feature key has 
a Line Status Indicator that behaves the same way as those on SUPERSET 4000 series 
telephones.
The PKM48 connects to the PKM interface on the SIM1. A second PKM48 can connect to the 
first to provide for 96 additional feature keys for the SUPERSET 4025 and SUPERSET 4150 
telephones. You cannot connect a PKM48 to an 
AIM device.
For installation instructions, see the SX-2000 Install Peripherals section of the Technical 
Documentation CD-ROM.
Programmable Key Module 48










