AU Pointer Byte
Line Layer / Multiplexer Section
B2 Byte (MS-BIP)
A 24-bit interleaved even parity code used to determine if transmission errors have occurred over the
Multiplexer Section
Its calculated over all the bits of the STM-1 frame except those in the Regenerator Section overhead
The computed checksum is placed in the MSOH of the following STM-1 frame
K1 Byte (APS-Linear)
Used to activate and deactivate the switching between the main and protection paths on a multiplexer section
APS message type conforms to ITU-T G.783 and Bellcore GR.253 for Linear network architectures
Bits 1-4 (G.783 Protocol)
1111 Lockout of protection
1110 Forced switch
1101 Signal fail, high priority (1:n only)
1100 Signal fail, low priority
1011 Signal degrade, high priority (1:n only)
1010 Signal degrade, low priority
1000 Manual switch
0110 Wait to restore
0100 Exercise
0010 Reverse request (bidirectional systems only)
0001 Do not revert
0000 No request
Other codes are unused
Bits 5-8 selects channel used by APS messages
0000 Null channel
0001 to 1110 Channels 1 thru 14
1111 Extra traffic channel
RXT-6200_RXT6000e_Module_Manual
Page 124 of 387
Содержание RXT-6000e
Страница 1: ......
Страница 39: ...Rx Pattern Setup Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 39 of 387...
Страница 48: ...Tx Interface Setup Tx Structure Setup Text Mode RXT 6200_RXT6000e_Module_Manual Page 48 of 387...
Страница 61: ...RXT 6200_RXT6000e_Module_Manual Page 61 of 387...
Страница 97: ...RXT 6200_RXT6000e_Module_Manual Page 97 of 387...
Страница 199: ...RXT 6200_RXT6000e_Module_Manual Page 199 of 387...
Страница 200: ...Go back to top Go back to TOC Errors Alarms Page 2 RXT 6200_RXT6000e_Module_Manual Page 200 of 387...
Страница 232: ...BERT Results Signal Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 232 of 387...
Страница 254: ...Background Results Per Stream Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 254 of 387...
Страница 267: ...Event Log Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 267 of 387...
Страница 327: ...Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 327 of 387...
Страница 351: ...Go back to top Go back to TOC RXT 6200_RXT6000e_Module_Manual Page 351 of 387...