Specifications

ASMi-52 Installation and Operation Manual Chapter 4 Managing ASMi-52 via a Terminal
Configuring the Physical Ports 4-33
Selecting Resynchronization Time
You can define time required for the E1 port operating in the framed mode to
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).
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To select resynchronization time:
1. From the E1 Port Configuration menu, select Sync Mode.
The Sync Mode menu appears (see Figure 4-37).
2. From the Sync Mode menu, select CCITT to choose CCITT mode, select FAST
to choose FAST mode, or select 62411 to choose 62411 mode.
The E1 Port Configuration menu appears.
3. Save the changes.
ASMi-52
Sync mode (CCITT (complies with G732))
1. CCITT (complies with G732)
2. FAST (after 1 sec)
3. 62411 (after 10 sec)
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ESC-prev.menu; !-main menu; &-exit; @-scroll
Figure 4-37. Sync Mode Menu
Enabling CRC-4 Code Generation
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.
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To enable CRC-4 code generation:
1. From the E1 Port Configuration menu, select CRC-4.
The CRC-4 value changes.
2. Save the changes.
Defining Idle Code
You can define the code transmitted to fill idle (unused) timeslot in the E1 frames.
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To define idle code:
1. From the E1 Port Configuration menu, select Idle Code
2. Enter desired code in the range of 00 to FF, press <Enter>.
3. Save the changes.