Multi-Tech Systems MVP-2410 사용자 설명서

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Red Alarm 

Integer tally of 
alarms 
counted since 
last reset. 

The alarm condition declared when a 
device receives no signal or cannot 
synchronize to the signal being received.  A 
Red Alarm is generated if the incoming 
data stream has no transitions for 176 
consecutive pulse positions. 

Blue Alarm 

Tally since last 
reset. 

Alarm signal consisting of all 1’s (including 
framing bit positions) which indicates 
disconnection or failure of attached equipment. 

Loss of 
Frame 
Alignment 

Tally since last 
reset. 

Loss of data frame synchronization. 

Excessive 
Zeroes 

Tally since last 
reset. 

Displayed value will increment if 
consecutive zeroes beyond a set threshold 
are detected.  I.e., tally increments if more 
than 7 consecutive zeroes in the received 
data stream are detected under B8ZS line 
coding, or if 15 consecutive zeroes are 
detected under AMI line coding. 

Status 
Freeze 
Signaling 
Active 

 

Signaling has been frozen at the most 
recent values due to loss of frame 
alignment, loss of multiframe 
alignment or due to a receive slip.

 

Line 
Loopback 
Deactivation 
Signal 

 

Line loopback deactivation signal has 
been detected in the receive bit stream. 

 

Transmit 
Line Short 

 

A short exists between the transmit pair for 
at least 32 consecutive pulses. 

Transmit 
Data 
Overflow 

 

For use by MTS Technical Support 
personnel.  

 

Transmit 
Slip Positive 

 

The frequency of the transmit clock is less 
than the frequency of the transmit system 
interface working clock. A frame is 
repeated.