Hardware manual

Issue 8 Electra Elite
5 - 22 Installing Electronic Telephone Units
4.1.2 Installation
When a BRT(4)-U( ) ETU is installed, a CLKG-U( ) Unit
must be installed on the CPUB( )-U( ) ETU.
A maximum of 8 BRT(4)-U( ) ETUs can be installed in
slots S1~S4 in the basic or first expansion KSU in the
system (S7000 or lower).
Using S8000 or higher, a maximum of eight BRT(4)-U( )
ETUs can be installed in any interface slot in the system,
limited by 64 trunks.
4.1.3 Switch Settings
SW1 is the reset switch.
4.1.4 Jumpers
CN101 and CN102
Set the 100
termination to On or Off for Channel 1.
Jumper Pins 1 and 2 are shorted together at the
factory to turn on the 100
terminal.
CN201 and CN202
Set the 100
termination to On or Off for Channel 2.
Jumper Pins 1 and 2 are shorted together at the
factory to turn on the 100
terminal.
CN301 and CN302
Set the 100
termination to On or Off for Channel 3.
Jumper Pins 1 and 2 are shorted together at the
factory to turn on the 100
terminal.
CN401 and CN402
Set the 100
termination to On or Off for Channel 4.
Jumper Pins 1 and 2 are shorted together at the
factory to turn on the 100
terminal.