TMXF28155/51 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Preliminary Data Sheet
May 2001
444
Agere Systems Inc.
19 VT/TU Mapper Functional Description
(continued)
I
When operating in UPSR mode VT_V5_INS[1
—
28] = 1, REI-V is set to the value in the received LOPOH serial
access channel storage when enabled by bit, VT_REI_EN[1
—
28] =1 (
Table 198
). When operating in normal
mode VT_V5_INS[1
—
28] = 0, REI-V is set to 1 for any detected BIP-2 errors in the corresponding received VT
when enabled by bit, VT_REI_EN = 1. Otherwise, the REI-V bit is set to 0.
I
RFI-V is supported. Manual control of the RFI-V bit is enabled with bit VT_RFI_EN[1
—
28] = 1 (
Table 198
). The
RFI-V bit is programmed with the value of bit VT_RFI_INS[1
—
28] (
Table 200
). When VT_RFI_EN[1
—
28] = 0 and
operating in UPSR mode VT_V5_INS[1
—
28] = 1, RFI-V is set to the value in the received LOPOH serial access
channel storage. Otherwise, RFI-V is automatically generated and inserted as defined in
Table 561 on page 444
.
When operating in byte synchronous mode, RFI-V is also based on the incoming DS1 RAI from the framer.
I
One bit RDI-V is supported when bit VT_TX_ERDI_EN[1
—
28] = 0 (
Table 198
). Manual control of the RDI-V bit is
enabled with bit VT_RDI_EN[1
—
28] =1 (
Table 198
). The RDI_V bit is programed with the value of bit
VT_RDI_INS[1
—
28] (
Table 200
). When VT_RDI_EN[1
—
28] = 0 and operating in UPSR mode
VT_V5_INS[1
—
28] = 1 (
Table 199
), RDI-V is set to the value in the received LOPOH serial access channel stor-
age. Otherwise, RDI-V is automatically generated and inserted as defined in
Table 561
below.
I
Enhanced RDI will be supported when bit VT_TX_ERDI_EN[1
—
28] = 1. Manual control of the ERDI bits 5, 6,
and 7 of the Z7 byte is enabled with bit VT_ERDI_EN[1
—
28] = 1 (
Table 198
). The ERDI bits, in bit positions 5, 6,
and 7 of the Z7 byte are programed with the value of bits VT_ERDI_INS[1
—
28][2:0] (
Table 200
), respectively.
When VT_ERDI_EN[1
—
28] = 0 and operating in UPSR mode VT_V5_INS[1
—
28] = 1 (
Table 199
), ERDI-V is set
to the value in the received LOPOH serial access channel storage. Otherwise, bits 5, 6, and 7 of the Z7 byte are
automatically generated and inserted as defined in
Table 561
below.
Table 561. RDI-V, RFI-V, and REI-V Automatic Generation
Remote Error Indication
Anomaly/defect.
REI-V
0
1
No BIP-2 errors detected.
BIP-2 errors detected.
One Bit Remote Failure Indication
Anomaly/defect.
RFI-V
0
1
No alarms.
AIS-V, LOP-V, UNEQ-V, PLM-V or automatic AIS detected from SPEMPR.
One Bit Remote Defect Indication
RDI-V
0
1
Anomaly/defect.
No alarms.
AIS-V, LOP-V, UNEQ-V, or TIM-V.
Enhanced Remote Defect Indication (Bellcore GR-253)
RDI-V
(Z7 bit 5)
(Z7 bit 6)
(Z7 bit 7)
0
0
1
0
1
0
1
0
1
1
1
0
RDI-V
(V5 bit 8)
0
0
1
1
RDI-V
RDI-V
Anomaly/defect
No defects.
PLM-V (VT payload mismatch).
AIS-V or LOP-V.
UNEQUIP-V or TIM-V.