RAD Data comm T1 Manuel D’Utilisation

 

ASM-MN-214 Card Cage 

5-1 

This chapter describes the card cage version of FOM-E1/T1. It discusses the 
following topics: 
•  ASM-MN-214 card cage 
•  FOM-E1/T1/R plug-in card for the ASM-MN-214 cage 
•  Cage and card power supply 
•  Installation of cage and card. 

The ASM-MN-214 card cage contains one or two power supplies and up to  
14 plug-in cards. The card types can be FOM-E1/T1/R or other RAD rack version 
modems/converters – any combination of up to 14 plug-in cards. 
For each of the 14 cards, the rear panel (see 

) contains a male connector 

for the terminal block and a DB-25 connector. A protection cover protects the 
terminal block connectors. 
The terminal block contains screws for connecting the transmit and receive pairs 

and ground, for the balanced E1/T1 interface. The transmit pair is connected to 
the terminals marked XMT, the receive pair – to the terminals marked RCV, while 
the fifth screw is a terminal for optional ground connection. When operating 
FOM-E1/T1/R with unbalanced E1 interface, use a CIA/TB-BNC/214 adapter, 
which converts the terminal block connector into two coaxial BNC connectors. 
The 25-pin D-type female connector serves as an alarm relay port (see 

for the connector pinout).