Specifications
19
Power-On
When the Terminal is first powered on, the CPU obtains its software and the software for 
all of the circuit cards from hard disk. Since the software is stored on hard disk and not in 
PROMs, Zetron can update any installed terminal with just a phone call.
Once the software is loaded, and the CPU has tested the cards for proper operation, the 
Model 2100 and Model 2200 goes “online” for paging. The CPU continually polls the 
microprocessors on the phone and radio interface cards for any required service. The 
distributed multiple microprocessor of the Model 2200 dedicates intelligence right where 
it is needed. Each processor guarantees instant service to a phone caller or radio. Multiple 
processors also mean that as the system is expanded with more cards, more computer 
power is also added to keep throughput high and clients happy.
Power-On
Following installation by qualified radio service personnel, turn on the Terminal. The 
power switch for the Model 2200 is on the right side panel; for the Model 2100 and Model 
2200EX it is on the front left (under the front cover). Various lights on the front of the 
circuit cards will come on and the unit will perform a built-in self-test. Upon completion 
of the self-test (about 30 seconds), the circuit cards’ software is automatically loaded from 
the hard disk. Lights on the front of the cards blink as the cards are selected by the CPU 
and loaded with their software. This software loading process takes about seven seconds 
per circuit card type.
The Model 2100 and Model 2200 is now ready for paging use. During normal operation, 
the SELECT and TEST3 lights on input cards (Trunks and Multiports) will both flash in 
sync with each other as the CPU stays in communication with each card’s microprocessor. 
Various status lights on each card indicate hardware activity such as incoming phone calls 
and outgoing radio paging messages. Refer to Series 2000 Paging Terminals Installation 
and Maintenance for details on the status lights.










