Hardware manual

Issue 8 Electra Elite
5 - 76 Installing Electronic Telephone Units
5.3 ESI(8)-U( ) ETU
5.3.1 Description
The Electronic Station Interface ETU provides an 8-port
interface for Multiline Terminals, ElectraMail CTI,
Attendant Consoles, Single Line Telephone Adapter
SLT(1)-U( ) ADP, and DBM(B)-U( ) Box.
5.3.2 Switch Settings
SW1 resets the ETU.
5.3.3 Installation
A maximum of 15 ESI(8)-U( ) ETUs can be installed in
slots S1~S8 in any system KSU.
Figure 5-42 ESI(8)-U( ) ETU