Zhone Technologies IMACS-200 manual Pattrn, SIG Conv

PATTRN

The Pattern field selects an outgoing test pattern for the current port. The test pattern is generated by the system and sent to the selected port. You can select a different pattern for each port. The none option disables the test pattern. The D-mW(Digital milliwatt) option sends a 1 kHz tone at 0.0 dBm. The setting of the Rx TLP setting affects the D-mW signal level.

SIG CONV

The Signaling Conversion parameter allows you to change the transmit ABCD signaling bits from CCITT (E1) to ANSI (T1) standards, and is accessd by selecting B from the taBs option at the bottom of the window.

The options are off if ANSI signaling is used and on to convert transmit signaling from ANSI to CCITT format according to the Interface Card Conversion Table for FXS signaling. This setting also converts receive signaling from CCITT to ANSI. To see the options currently deployed on a port, Figure 6-3shows the default settings for the conversion table. This table will be commonly used by all ports to which the this option is set to on.

The C->A column describes conversion done in the downstream direction towards the subscriber loop, while the A->C column describes the conversion done in the upstream direction, normally towards the T1 interface.

Figure 6-3.TABs Signal Conversion

6-6 FXS Ports