Zhone Technologies IMACS-200 manual Mode, Rx TLP, Tx TLP

TS

The TS setting identifies the time slot on the WAN link to which this port is assigned. Values range from 1 to 24 for T1 links, and 01 to 31 for E1 links. For a display of the available time slots, refer to the cross-connect map for the WAN link; see Chapter 4, System Configuration and Operation in the System Reference Guide for information about viewing cross-connect maps.

CAUTION!

Before activating this port, verify the behavior expected by both the station equipment and remote central office equipment, and be sure the systems are properly configured.

MODE

The Mode setting should be determined by the type of equipment to which the user is connecting the port. Currently the only allowable option uses two-wire balanced connections. The fxs (Foreign Exchange Station) option allows users to connect the system to a two-way (both inbound and outbound calls) PBX trunk or a key system trunk. The system requires a ringing generator for this option.

The plar (private line automatic ringdown) option provides point-to-point unswitched connections between two telephone sets. This configuration is usually not attached to an exchange or switch; rather it provides a “hot line” between two locations. The IMACS-200 only supports d4-m2 version of plar, where the receiver generates ring cadence, offhook = 0 and onhook = f.

Rx TLP

The Receive Transmission Level Point (TLP) setting controls the amount of gain or loss added to the incoming signal after it is decoded to analog. To increase the signal level, set the Rx TLP setting to a positive value (i.e., the larger the number, the more gain is added). To decrease the signal level, set the Rx TLP setting to a negative value (i.e., the more negative the number, the more the signal level is decreased). For example, an incoming signal at -5 dBm can be increased to -3 dBm by setting Rx TLP to +2 dB. The Rx TLP range is -9.0 dB to +3.0 dB.

Tx TLP

The Transmit TLP setting controls the amount of gain or loss added to a voice signal from the CPE before it is encoded to digital PCM. To increase the signal level, set the Tx TLP setting to a negative value (i.e., the more negative the number, the more gain is added). To decrease

6-4 FXS Ports