User Manual

INSTALLATION AND MAINTENANCE MANUAL
LYNX.sc E1 FAMILY
SPREAD SPECTRUM RADIOS
OCTOBER 1998
SECTION 3: INSTALLATION & ADJUSTMENTS PAGE 3-45
4. If the LYNX.sc radios are connected in a repeater configuration, Orderwire services can be
established to all LYNX.sc terminals in the network by implementing a connection of their
rear-panel connectors between repeater terminals. At the repeater site, a cable can be
connected to the two LYNX.sc terminals between their rear panel VF 25-pin connectors as
shown in Figure 3-20. With this cable in place, the Orderwire function will operate at terminals
at each end of the repeater and at the repeater site. This function can be continued through
several repeater sites if desired. For hub connections of 3 or more LYNX.sc radios at the
same site, an external 4-wire bridge is required to connect all radios to the orderwire.
The orderwire system can be integrated with orderwire
equipment supported by many other vendors. If your existing
orderwire network uses 2 digit addressing, and 0 dBm VF
interface, it can be connected to a LYNX.sc as shown in Figure
3-20.
Dialing a
✶ (star key) on the orderwire telephone implements an “all call”
feature which rings all connected radios. Also, if a phone anywhere in the
connected network has accidentally been left off-hook, the # (pound key)
key can be used to mute all off-hook handsets until they are placed on
and off hook again.
The orderwire operates like a “party line”. All telephones provide
communication to all other telephones in the connected network. Even if
a particular telephone does not ring, it can still be used to talk and listen
to any ongoing orderwire activity if the orderwire is in use at other
terminal locations.
Figure 3-20: VF Port Connection
VF Connector
OrderWire
Connection