A-4
Technical Characteristics
GDC 048R154-000
Item
Characteristic
Electrical (Cont.)
Consecutive zeros
enforcement
8 x (N+1) when configured for AMI,
consecutive, N x 64, framed; or AMI,
unframed
Keep Alive signal
Type 1 (consecutive, framed ones fill-
ing the unused bandwidth)
Framing format
D4 Superframe,
AT&T 54016 Extended Superframe
(ESF),
ANSI T1.403 ESF with automatic
frame format,
unframed option
Alarms and status conditions
Out of Frame (OOF),
Alarm Indication Signal (AIS or Blue
alarm),
Loss of Signal (LOS)
Diagnostics
Network Self-Test;
Network Line Loop;
Network Payload Loop;
Network Local Test, with Self-Test;
Network Remote Test, with Self-Test;
DTE Self-Test;
DTE Local Loop;
DTE Digital Loop;
DTE Remote Digital Loop, with Self-
Test.
Front panel test switch
EIA test leads for LL, RL
