Specifications
Radio System
98 025-9035AA
2100 or 2200 and the transmitter does not introduce tone distortion or produce too much 
audio level compression, which may fool analog tone decoders. 
Also, note that some paging tones are very close to the 2175 Hz tone often used and 
removed by tone remote transmitter control equipment. Therefore, it is not recommended 
that tone remote control equipment be engineered into the paging system. Instead, co-
locate the paging terminal and the transmitter. If this is not possible, then a D.C. remote 
could be used. 
Call Zetron Technical Support for further information.
Radio Connectors
Radio transmitter connections are brought into the Model 2100/2200 using a telco 
standard 25-pair cable. The 50-pin mating connector is mounted to the Model 2100/2200 
lower backplane (Z-bus) board, visible below the circuit card cage after the unit's front 
door has been removed. 
Ground the cabinet to a common earth connection using any of the screws holding the 
backplane to the rear panel, or any of the nuts holding the side panels to the power supply 
shelf. 
There are no internal protection devices for lightning strikes, so external protection 
devices, such as are available from Zetron are highly recommended to protect your 
investment. 
The charts on the following pages detail the pinout for the radio connectors. 
Note Except where noted, station card Part No. 702-9038 and station 
card Part No. 702-9441 are equivalent.










