Teltone m-392 Guida Utente
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Teltone recommends the use of a standard polarity tester such as Radio Shack
43-101. Polarity must be correct on the wiring to the units to minimize relay contact
wear and avoid “bell tap” (a momentary or single ring at the telephone).
43-101. Polarity must be correct on the wiring to the units to minimize relay contact
wear and avoid “bell tap” (a momentary or single ring at the telephone).
Caution: Make sure that the unit is powered down before using the tester.
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Plug the tester into the Port 1 jack on the rear panel of the LSS.
Check for the following conditions:
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If the green light on the tester comes on, the polarity of the wiring is correct.
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If the red light comes on, Tip and Ring are reversed and must be swapped.
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If no light comes on, the central office Tip/Ring loop is open.
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Connect a telephone that is to share the line (if any) to Port 1. (If desired, connect an
answering machine to Port 1 and the telephone to the answering machine.) Go
off-hook on the phone and verify dial tone.
answering machine to Port 1 and the telephone to the answering machine.) Go
off-hook on the phone and verify dial tone.
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Connect other devices that will share the line to the remaining device ports (Port 2 on
M-392-A/B; Ports 2 and 3 on M-393-A/B; Ports 2, 3, and 4 on M-394-A/B)
M-392-A/B; Ports 2 and 3 on M-393-A/B; Ports 2, 3, and 4 on M-394-A/B)
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Connect the power cord to the Power jack on the LSS and the transformer to a
non-switched, standard AC wall outlet.
non-switched, standard AC wall outlet.
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The indicator light on the front panel should be flashing. If it is not on, check that the
power cord is securely connected and that the outlet has power. If the LED is on
bright, but does not flash, the unit is probably faulty and should be replaced.
power cord is securely connected and that the outlet has power. If the LED is on
bright, but does not flash, the unit is probably faulty and should be replaced.
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Place a call to the telephone connected to Device Port 1. The call should be
answered on the first ring and the Port 1 telephone should ring after four seconds.
Answer the phone, then place the phone back on-hook.
answered on the first ring and the Port 1 telephone should ring after four seconds.
Answer the phone, then place the phone back on-hook.
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Go off-hook on one of Ports 2 through 4 and then attempt to place a call from Port 1.
The Port 1 telephone will not seize the line unless the Total Priority feature has been
enabled. (Teltone Factory Default is No Priority.) Port 1 callers hear busy tone.
The Port 1 telephone will not seize the line unless the Total Priority feature has been
enabled. (Teltone Factory Default is No Priority.) Port 1 callers hear busy tone.
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If a Polling Controller has been installed, place a call from the Polling Controller to
each of the other device ports and verify that the call is routed appropriately.
each of the other device ports and verify that the call is routed appropriately.
Installation on PBX or Key Telephone Systems
The LSS can be installed on the telephone company central office side, or trunk side, of a
PBX or Key Telephone System. The LSS can also be installed on the station side or as
an extension on a PBX or Key Telephone System, as long as the interface in an analog
loop start circuit.
PBX or Key Telephone System. The LSS can also be installed on the station side or as
an extension on a PBX or Key Telephone System, as long as the interface in an analog
loop start circuit.
For best results in trunk installation, install the LSS in series with the lowest priority
incoming line in a PBX or Key Telephone System hunt group.
incoming line in a PBX or Key Telephone System hunt group.
Calls intended for devices attached to the LSS must be dialed directly to the telephone
number for this line to prevent misdirected polling or FAX calls.
number for this line to prevent misdirected polling or FAX calls.
Reference Manual
Chapter 3: Installing the LSS
40-400-00015, Rev.
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