EXFO FTB-800 Series for FTB-1 - Manual (Page 401)

Test Functions
NetBlazer 391
APS
Operation Mode: Bits 6 through 8 of the K2 byte.
Bits 6 to 8 Linear mode Ring mode
000 Reserved
a
a. Default value.
Idle
a
001 Reserved Bridged
010 Reserved Bridged and Switched
011 Reserved Extra Traffic - Protection
100 Unidirectional Reserved
101 Bidirectional Reserved
110 RDI-L
b
/MS-RDI
c
b. Operation mode for SONET.
c. Operation mode for SDH.
RDI-L
b
/MS-RDI
c
111 AIS-L
b
/MS-AIS
c
AIS-L
b
/MS-AIS
c