User's Manual

4-35
Figure 4-12 DS1/E1, DS3, OC3 Radio Audio Provisioning (Sheet 1 of 2)
SERVICE CHANNEL:
1:AUDIO-1 0/0 Norm
LMW-9041-sm
09/15/03
NORM – MODE OF OPERATION SELECTED IS NORMAL. IN THIS MODE
THE RADIO REQUIRES AN OFF HOOK SIGNAL FROM THE EXTERNAL
AUDIO EQUIPMENT. THIS MEANS THAT THE AUDIO EQUIPMENT USED
TO CONNECT TO THE RADIO MUST HAVE E AND M-LEAD SIGNALING
CAPABILITY (MOST AUDIO EQUIPMENT DOES HAVE THIS CAPABILITY).
IF THE EXTERNAL AUDIO EQUIPMENT DOES NOT HAVE E AND M-
LEAD SIGNALING CAPABILITY, SELECT O/H AND A CONSTANT OFF-
HOOK SIGNAL WILL BE PROVIDED AUTOMATICALLY BY THE RADIO
CONTROLLER SOFTWARE.
0/0 – RADIO REQUIRES 0 dBm AUDIO INPUT SIGNAL AT CONNECTOR J316.
THE RECEIVED AUDIO SIGNALS ARE NOT AMPLIFIED. THE RADIO
OUTPUTS 0 dBm ON AUDIO 1 CONNECTOR J316. THIS SELECTION IS
NORMALLY SUFFICIENT IF THE RADIO AND EXTERNAL AUDIO
EQUIPMENT ARE LOCATED IN THE SAME SHELTER, ROOM AND EVEN
BUILDING. LONGER DISTANCES (SUCH AS BETWEEN BUILDINGS) MAY
REQUIRE AMPLIFICATION ON THE OUTPUT SIGNAL. IN THIS CASE,
SELECT -16/+7 WHERE THE RADIO INPUT REQUIRED IS -16 dBm AND THE
RADIO AMPLIFIES RECEIVED AUDIO SIGNALS TO PROVIDE A +7 dBm
OUTPUT AT AUDIO 1 CONNECTOR J316.
AUDIO 1 OR AUDIO 2 – AUDIO CHANNEL TO BE INSERTED INTO SERVICE
CHANNEL 1 IS 1 OR 2. IF AUDIO CHANNEL 1 IS ALREADY IN USE, SELECT AUDIO
2. ALL ORDERWIRE IS PARTY-LINE. IF YOU WANT TO BE ABLE TO RING A
PARTICULAR SITE YOU MUST USE DTMF ON AUDIO 1. DTMF ALLOWS YOU TO
RING A DIALED SITE BUT ANYONE CAN PICK UP THE 4-WIRE TELEPHONE
AND/OR 2-WIRE HANDSET AND LISTEN TO THE CONVERSATION AND TALK.
WHATEVER IS SELECTED FOR SERVICE CHANNEL 1, IT MUST BE THE SAME
END-TO-END.
1:, 2: OR 3: – THE 64 kb/s SERVICE CHANNEL TO BE INSERTED INTO RADIO
OVERHEAD IS 1. IF SERVICE CHANNEL 1 IS ALREADY IN USE, SELECT SERVICE
CHANNEL 2 (2:) OR SERVICE CHANNEL 3 (3:) FOR THE AUDIO CHANNEL. WHATEVER
IS SELECTED FOR SERVICE CHANNEL 1, 2, OR 3, IT MUST BE THE SAME END-TO-
END.
Audio provisioning is required only if 4-wire audio equipment (external equipment not
part of the radio) is supplied and the external audio equipment is connected to audio
port 1 J316 or audio port 2 J317 on the radio backplane. These provisionable 4-wire
audio functions should not be confused with the 2-wire audio handset. The handset is
fully operational after it is connected to the TEL jack on the radio controller module,
provided the radio is provisioned Audio 1.
The most common audio provisioning is:
1:, 2:, or 3: AUDIO 1 0/0 Norm.
Note
The 2-wire handset is transported over Audio 1 only.
Note