Hardware Installation Manual 3. Physical Description
Media Gateways & SBCs 17 Mediant 1000B Gateway & E-SBC
3.2.1 FXS Module
The FXS module provides the Foreign eXchange Subscriber (FXS) interfaces. Each FXS
module can provide up to four FXS port interfaces.
The following types of FXS modules are available:
FXS module for indoor FXS cable routing only (Catalog Part Number M1KB-VM-
4FXS, Hardware Part Number GTPM00056). The device can house up to six of these
modules (i.e., a total of 24 FXS ports).
FXS Module for indoor and outdoor FXS cable routing (Catalog Part Number M1KB-
VM-4FXS-O, Hardware Part Number GTPM01046). The device can house up to five of
these modules (i.e., a total of 20 FXS ports). The module is compatible with the
following software versions:
• Version 6.8: 6.80A.270.002 and later
• Version 7.0: 7.00A.021.004 and later
• All other subsequent versions (e.g., 7.2)
Note:
• The FXS modules support loop- and ground-start signaling.
• The chassis can be installed with a combination of both types of FXS modules.
• For the FXS module supporting indoor and outdoor FXS routing, a maximum of 20
FXS channels (instead of 24) are supported for simultaneous ringing as well as for
off-hook on long haul.
3.2.1.1 Ports Description
Each FXS module provides up to four analog RJ-11 ports. The ports are labeled I, II, III,
and IIII.
Figure 3-2: FXS Module
3.2.1.2 LEDs Description
Each FXS port provides a LED for indicating operating status, as described in the table
below:
Table 3-3: FXS Module LEDs Description
Color State Description
Green
On Phone connected to the port is off-hooked.
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