PEB2080 SIEMENS [Siemens Semiconductor Group], PEB2080 Datasheet - Page 49

• Manufacturer Part Number: PEB2080
• Description: S/T Bus Interface Circuit(SBC)
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Commands / Indications and State Diagrams in NT
Table 4
Command (downstream) Abbr.
Deactivate request
Resynchronization of
U-interface
Activate request
Activate request loop
Deactivate indication
Activate indication
Activate indication loop
Send single zeros
Indication (upstream)
Timing
Lost signal level
Lost framing
Error indication
Activate request
Activate indication
Deactivate indication
(x) unconditional commands
Semiconductor Group
DR
RSYD
ARD
ARL
DID
AID
AIL
SSZ
Abbr.
TIM
LSL
RSYU
EI
ARU
AIU
DIU
Code
0000
0100
1000
1010
1111
1100
1110
0010
Code
0000
0001
0100
0110
1000
1100
1111
50
Remark
(x)
Transmission of pseudo-ternary pulses at
96-kHz frequency after loss of synchronism of
the U interface
Transmission of info 2
Transmission of info 2, switching of test loop 2
Deactivation acknowledgement, quiscent state
Transmission of info 4
Transmission of info 4, switching of test loop 2
Transmission of pseudo-ternary pulses at
2-kHz frequency (x)
Remark
SBC requires clock pulses
No receive level
Receiver is not synchronous
RST and SCZ both active
Info 1 received
Synchronous receiver
Timer (32 ms) expired or info 0 received (during
16 ms) after deactivation request
Operational Description