User's Manual

INSTALLATION AND MAINTENANCE MANUAL
LYNX.sc E1 FAMILY
SPREAD SPECTRUM RADIOS
SEPTEMBER 1999
SECTION 2: PRODUCT DESCRIPTION PAGE 2-15
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 LYNX.sc 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)