Hardware manual

Issue 8 Electra Elite
5 - 40 Installing Electronic Telephone Units
4.6.2 Installation
In COI mode, a maximum of eight COIB(8)-U20/U30
ETUs can be installed in IF slots in the Electra Elite 192
system limited by 64 trunks.
For Caller ID In COID mode, eight COIB(8)-U20/U30
ETUs can be installed in slots S1~S4 in the basic or first
expansion KSU (S7000 or lower).
Using S8000 or higher, a total of eight COIB(8)-U20/
U30 ETUs can be installed in any interface slot in the
system, limited by 64 trunks.
Figure 5-22 COIB(8)-U20/U30 ETU