MediaPack Analog Gateways  21  MP-1288 
Hardware Installation Manual   3. Physical Description 
3.3.2  FXS Blades 
The FXS blade (referred to as Module in the device's management interfaces) provides the 
FXS port interfaces. Each blade provides three FXS port connectors -  50-pin Telco 
connector (Centronics type). Each connector provides 24 FXS interfaces and therefore, 
each blade provides up to 72 FXS interfaces (3 x 24 FXS). The device can be housed with 
up to four FXS blades thereby, supporting up to 288 FXS port interfaces (4 blades x 72 
FXS). The FXS blades are available as spare parts. For replacing FXS blades, see Section 
 6.2 on page 48.  
Each  FXS blade provides a  LED  on the front and rear panel, as described in Section 
 3.3.4.3 on page 25. 
Figure  3-6: FXS Blade Showing Three FXS Telco Connectors  
 
The chassis slot assignment for the FXS blades is shown in the figure below (front panel). 
Note that the slot labels (S1, S2, S3 and S4) are located on the rear panel. 
Figure  3-7: Chassis Slot Assignment for FXS Blades (Front Panel)