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Testing Automatic Protection Switching
CTS 710 SONET Test Set User Manual
3–163
H Select EDIT BYTE to set the byte to a pattern different than the
preset choices.
To set the bit pattern for the first four bits of the K1 byte:
Press Menu
Button
Select Menu
Page
Highlight
Parameter
Select Choice
TRANSMIT APS
COMMANDS
Bits 1–4: Switch
Request
(under K1 FULL
BYTE)
as appropriate
The selections available for the first four bits of the K1 byte depend
on whether the mode is set to Ring or Span. See Tables 3–16 and
3–17 for descriptions of the preset choices.
Table 3–16: Choices for Bits 1–4 of the K1 Byte When Mode is Set to
Ring
Main Screen
Mnemonic
Choice Text Bit Pattern
NR NR No Request 0000
RR–R RR–R Reverse Request Ring 0001
RR–S RR–S Reverse Request Span 0010
EXER–R EXER–R Exerciser Ring 0011
EXER–S EXER–S Exerciser Span 0100
WTR WTR Wait To Restore 0101
MS–R MS–S Manual Switch Ring 0110
MS–S MS–S Manual Switch Span 0111
SD–R SD–R Signal Degrade Ring 1000
SD–S SD–S Signal Degrade Span 1001
SD–P SD–P Signal Degrade Protection 1010
SF–R SF–R Signal Fail Ring 1011
Testing Automatic Protection Switching
CTS 710 SONET Test Set User Manual
3–163
H Select EDIT BYTE to set the byte to a pattern different than the
preset choices.
To set the bit pattern for the first four bits of the K1 byte:
Press Menu
Button
Select Menu
Page
Highlight
Parameter
Select Choice
TRANSMIT APS
COMMANDS
Bits 1–4: Switch
Request
(under K1 FULL
BYTE)
as appropriate
The selections available for the first four bits of the K1 byte depend
on whether the mode is set to Ring or Span. See Tables 3–16 and
3–17 for descriptions of the preset choices.
Table 3–16: Choices for Bits 1–4 of the K1 Byte When Mode is Set to
Ring
Main Screen
Mnemonic
Choice Text Bit Pattern
NR NR No Request 0000
RR–R RR–R Reverse Request Ring 0001
RR–S RR–S Reverse Request Span 0010
EXER–R EXER–R Exerciser Ring 0011
EXER–S EXER–S Exerciser Span 0100
WTR WTR Wait To Restore 0101
MS–R MS–S Manual Switch Ring 0110
MS–S MS–S Manual Switch Span 0111
SD–R SD–R Signal Degrade Ring 1000
SD–S SD–S Signal Degrade Span 1001
SD–P SD–P Signal Degrade Protection 1010
SF–R SF–R Signal Fail Ring 1011