Hardware manual

System Hardware Manual 5 - 1
Installing Electronic
Telephone Units Chapter 5
SECTION 1
G
ENERAL
I
NFORMATION Each Electronic Telephone Unit (ETU) is installed in a slot in the Basic or
Expansion KSU.
The B64-U10 KSU has 10 slots that are divided into three categories.
CPU/EXP Slot
This is the first slot on the left in the KSU. A CPUB( )-U( ) ETU must be
installed in this slot in the Basic KSU and an EXP-U10 ETU must be
installed in this slot in the Expansion KSU.
ISA/– Slot
This slot, the second slot in the KSU, is reserved for the MIFA-U( ) or
MIFM-U( )ETU.
Do not install a CPU or EXP ETU in this slot in the Expansion KSU.
Interface Slots (S1~S8)
In the B64-U10 KSU, interface slots are physically located in slots 3~10
but are labeled S1~S8 on the KSU. All other interface ETUs can be
installed in any of these slots.
Slots S1 and S2 of the B64-U10 KSU are universal slots that support the
MIFA-U( ) ETU or MIFM-U( ) ETU.
This chapter describes each ETU and the installation procedures.
When the CPUB( )-U( ) ETU is installed in slots
S1~S8, it will be damaged!