RAD Data comm E1/T1 FXO Voice Interface, Law coding for E1 links On/off hook from the E1 on

Chapter 5 Setup Menu FCD-IPMInstallation and Operation Manual

Polarity (polarity reversal, also known as Wink Start Reversal)

When polarity is configured as Enabled, the polarity signal is received from E1 either on the B bit (while the on/off hook from T1/E1 parameter is configured to

A bit or A bit inverted), or on the A bit (while the on/off hook from T1/E1 parameter is configured to B bit or B bit inverted).

FXO Voice Interface

VOICE PARAMETERS: ( Device name - FCD-IPM , FXO)

-----------------

1.TX/RX gains

2. Coding law : [A LAW]

3.On/off hook from the E1 on : [A bit]

4.Ring Detection to the E1 on: [A bit]

5.	Default ABCD to the E1	: [0000]
6.	Polarity	: [Disabled]
7.	Signaling Feedback	: [Disabled]
8.	Out of Service method	: [Forced Idle]

ESC - Return to previous menu

Choose one of the above:

Figure 5-65. FXO Voice Interface

TX/RX Gains

Select this parameter to specify the nominal input level of the receive and transmit paths for each voice port. The input level range is –10 to +5 dBmm.

Coding Law

Select this parameter to specify the compounding law to be used by the voice channels. The values are:

A Law coding for E1 links

On/off hook from the E1 on

Select this parameter to specify the receive mode for on/off hook signaling from E1 into FXO. The values are:

A bit	When the received A bit signal from E1 equals 1 then off hook will be
	indicated in the FXO interface
	When the received A bit signal from E1 equals 0 then on hook will be
	indicated in the FXO interface

5-60 Interface Parameters Menu