
SBSLITE Telecom Standard Product Data Sheet
Preliminary
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
        56
Code Group
Name
Curr. RD-
abcdei fghj
Curr. RD+
abcdei fghj
Encoded Signals
Description
Synchronous T1/E1 Links
K27.7-
110110 1000
-
V5 byte
Asynchronous DS3/E3 Links
K27.7-
110110 1000
-
V5 byte, no justification request
K28.7-
001111 1000
-
V5 byte, negative justification request*
K29.7-
101110 1000
-
V5 byte, positive justification request*
Fractional Rate Links
K28.7-
001111 1000
-
V5 byte, send one extra byte request**
K29.7-
101110 1000
-
V5 byte, send one less byte request**
Floating Transparent Virtual Tributaries
K27.7-
110110 1000
-
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b00, IDATA[5] =
REI = ‘b0
K27.7+
-
001001 0111
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b00, IDATA[5] =
REI = ‘b1
K28.7-
001111 1000
-
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b01, IDATA[5] =
REI = ‘b0
K28.7+
-
110000 0111
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b01, IDATA[5] =
REI = ‘b1
K29.7-
101110 1000
-
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b10, IDATA[5] =
REI = ‘b0
K29.7+
-
010001 0111
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b10, IDATA[5] =
REI = ‘b1
K30.7-
011110 1000
-
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b11, IDATA[5] =
REI = ‘b0
K30.7+
-
100001 0111
V5 byte
IV5=1,
IDATA[0,4] = ERDI[1:0] = ‘b11, IDATA[5] =
REI = ‘b1
Note
1. Note there can be multiple V5s per SBI frame when in DS3 or E3 mode but only one justification can
occur per SBI frame.  Positive and negative justification request through V5 required by the SBI336S
interface should be limited to one per frame.