RAD Data comm ASMi-52 Manuel D’Utilisation

Chapter 4  Configuration 

Installation and Operation Manual 

4-30 

Configuring the Physical Ports

 

ASMi-52 Ver. 2.5 

You have to enable the CRC-4 code generation if you intend to gather statistics on 
the E1 performance. CRC-4 code generation is available for ASMi-52 units 
configured to G732N framing mode. 

 

•  CRC-4 code generation is configurable if one of the conditions below is fulfilled. 

•  The remote ASMi-52 is configurable if the local is configured as CO and is not an 

 

 

To enable CRC-4 code generation: 
1.  From the E1 Local Port menu, select CRC-4 (Main menu > Configuration > 

E1 Configuration > E1 Local Port > CRC-4). 

The CRC-4 value changes. 

2.  Save the changes. 

You can define the time required for the E1 port operating in framed mode to 
resume normal operation after loss of synchronization: 
•  CCITT – As per requirements of ITU-T Rec.G.732 
•  Fast – After 1 sec 
•  62411 – As per requirements of AT&T TR-62411 (after 10 sec). 

 

To select resynchronization time: 
1.  From the E1 Local Port/T1 Local Port menu, select Sync Mode (Main menu > 

Configuration > E1 Configuration/T1 Configuration > E1 Local Port > Sync 
Mode). 

The Sync Mode menu appears (see 

). 

2.  From the Sync Mode menu, select CCITT, FAST, or 62411. 

The E1 Local Port menu appears. 

3.  Save the changes.