Zhone IMACS 8000, User Manual

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12-6 Voice Cards
Model No.
Running Head
FXS Card User Screens and Settings FXS Card
MODE
The Mode setting should be determined by the type of equipment to which the user is
connecting the port. All options use 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 fxsdn (Foreign Exchange Station-Defined Network) option provides access
to new services offered by advanced networks from many major carriers. The system requires
a ringing generator for this option. The wink option uses the same type of signaling as fxsdn
and provides a 150-millisecond delay, then a 200-millisecond "wink" back to the central office
when the FXS card sees an off-hook condition from the central office. 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 unit requires a
ringing generator for this option.
The dpo (Dial Pulse Originating) option allows the unit to attach to out-going one-way trunks
from a PBX, key system, or a telephone set. This option is very similar to the fxs option;
however, the system does not require a ringing generator.
The slc96 (Subscriber Loop Carrier 96) option connects the card to one-way outgoing trunks
from a PBX, CENTREX, key system, or telephone set to an SLC

-96
channel. The slc96
mode also must be active on the associated WAN card.
TYPE
The Type setting matches the signaling behavior of the FXS equipment to the remote switch.
Use the loop (loop-start) option with POTS stations and simple PBX trunks. Use the lp-fd
(loop-start with Forward Disconnect) option when connecting to automated answering
equipment. Use the gs (ground-start) option with two-way PBX trunks. This setting helps
prevent glaring and call collisions. Use gs-i (ground-start immediate) for equipment requiring
a fast response time to the station or PBX. Use gs-a (ground-start automatic) for equipment
requiring fast-response time to the central office. Use ls-R2 for CCITT signaling used
internationally (immediate R2) which provides immediate seizure acknowledgment to the
network. Your selection must match the behavior of both the station equipment and remote
central office or PBX.
The lsR2e R2 Signaling for Ericsson switch for incoming and outgoing call modes. The tables
below represent FXS ls-R23 signaling modes.