Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

 NT5D33 and NT5D34 Lineside E1 Interface cards

The Man-Machine Interface (MMI) provides E1-link diagnostics and 
historical information for the LEI system. See “Installation and 
Configuration” on 

 for instructions on how to install the cabling and 

configure the terminal for the MMI. The following sections will describe the 
options available through the LEI’s MMI terminal and will explain how to 
set-up, configure, and use the MMI.

The MMI provides the following maintenance features:

•

configurable alarm parameters

•

E1-link problem indicator

•

current and historical E1-link performance reports

•

E1 verification and fault isolation testing

•

configuration of A\B bits (North American Standard, Australian P2, or 
customized settings are available)

The MMI may be used to activate alarms for the following E1-link 
conditions: 

•

excessive bit-error rate, 

•

frame-slip errors, 

•

out-of-frame, 

•

loss-of-signal, and 

•

blue alarm. 

Pre-set thresholds and error durations trip LEI alarm notifications. For 
descriptions of each of these E1-link alarm conditions, see “Performance 
counters and reporting” on 

. For instructions on how to set alarm 

alarm reporting, see “Display Alarms” on 

 and “Display Performance” on