Zhone IMACS 8000 User Manual page 397

FXS Card
Rx ABCD
The Receive ABCD setting allows the user to either monitor the status of the ABCD signaling
bits being received from the network or set a specific ABCD pattern for testing the receive
side of the circuit. The options for this field are mon (monitor) or set. Choosing set will bring
up a four digit field for users to input the ABCD pattern they want to receive. Any four digit
combination of ones and zeros is acceptable.
T-R-CNTL
The Tip and Ring Control setting allows you to either mon (monitor) or set (set) the state of
the Tip and Ring leads of an FXS port. Choosing set will display the following options (b =
battery, o = open, g = ground):
• RbTo (-48V is applied to the Ring lead and the Tip lead is open)
• TbRo (-48V is applied to the Tip lead and the Ring lead is open)
• RbTg (-48V is applied to the Ring lead and the Tip lead is grounded)
• TbRg (-48V is applied to the Tip lead and the Ring lead is grounded)
TO USER
In cross-connect systems only, the To User parameter allows you to break the circuit and send
a 0 dB test tone on the user side of the system. The options for this field are PCM, 300Hz,
1kHz, 3kHz, and quiet. Choose PCM if you do not want to inject a tone toward the CPE. In
this case, the PCM signal received from the network is still sent to the CPE in the normal
manner.
TO NTWK
In cross-connect systems only, the To Network parameter allows you to break the circuit and
send a 0dB test tone on the network side of the system. The options for this field are PCM,
300Hz, 1kHz, 3kHz, and quiet. Choose PCM if you do not want to inject a tone toward the
network. In this case, the PCM signal received from the CPE is still sent to the network in the
normal manner.
Tx ABCD
The Transmit ABCD informational field shows the current values of the ABCD bits that are
being transmitted to the network. If TX ABCD in the top half of the screen is changed via the
set function mentioned above, and the settings are saved by the Save command in the Menu
of Actions, the new bit pattern chosen will be reflected here.
Voice Cards
FXS Card User Screens and Settings
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