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A-5
8700-A2-GB20-00
April 2000
Tables A-2 and A-3 provides the maximum payload rates achievable for each
DSL line rate and the number of time slots required to achieve that payload rate.
For G.703, the payload rate depends on whether you are using signaling (time
slots 0 and 16) or data only (time slot 0).
Table A-2. Payload Rates and DSL Line Rates for Models 8747 and 8777
DSX-1-to-DSX-1 (To
7974-A2, 8747, 8777)
DSX-1-to-DSX-1
(To 7974-A1, 8774)
DSX-1- to-EIA-530-A
DSL
Line
Rate
(kbps)
Maximum
Payload
Rate
(kbps)
Time
Slots
Maximum
Payload
Rate
(kbps)
Time
Slots
Maximum
Payload
Rate
(kbps)
Time
Slots
1552 1536 24 1536 24 1536 24
1040 1024 16 960 15 1024 16
784 768 12 704 11 768 12
528 512 8 448 7 512 8
400 384 6 320 5 384 6
272 256 4 – – 256 4
144 128 2 – – 128 2
Table A-3. Payload Rates and DSL Line Rates for Model 8779
Voice Mode
G.703-to-G.703
Data Mode
G.703-to-G.703
Data Mode
G.703-to-EIA-530-A
DSL Line
Rate (kbps)
Maximum
Payload Rate
(kbps)
Time
Slots
Maximum
Payload Rate
(kbps)
Time
Slots
Maximum
Payload Rate
(kbps)
Time
slots
2064 1920 30 1984 31 1984 31
1552 1408 22 1472 23 1536 24
1040 896 14 960 15 1024 16
784 640 10 704 11 768 12
528 384 6 448 7 512 8
400 256 4 320 5 384 6
272 128 2 192 3 256 4
144 – – 64 1 128 2