User's Manual

INSTALLATION AND MAINTENANCE MANUAL
Tsunami FAMILY
SPREAD SPECTRUM RADIOS
SEPTEMBER 1999
PAGE 2-16 SECTION 2: PRODUCT DESCRIPTION
2.3.5 Connections
ORDERWIRE
This connection is used to access the orderwire function. This is a facility for "telephone" style service
from one radio to another. A standard electronic telephone [one with a handset and DTMF (push-
button tone) dialing] plugs into this connector. The user can dial the orderwire address of the far-end
radio (or any radio in the Tsunami network) to establish telephone communication between sites. This
communication does not interrupt or interfere with the other radio communications. The radio link must
be operational to use this facility. The orderwire feature can be very useful for installation, maintenance
and troubleshooting.
- Touch-tone Telephone* (for communication with far-end)
*Telephone connection specifications:
REN (Ringer Equivalency Number) 1.0 B
DTMF tones
within ±1.5% of nominal freq.
Ringing Voltage 48 VDC, typical
(Ringing voltage is adequate for modern solid state ringers,
NOT for the older mechanical type ringers)