DS3112+W Maxim Integrated Products, DS3112+W Datasheet - Page 128
DS3112+W
Manufacturer Part Number
DS3112+W
Description
IC MUX T3/E3 3.3V 256-PBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3112.pdf
(133 pages)
Specifications of DS3112+W
Controller Type
Framer, Multiplexer
Interface
Parallel/Serial
Voltage - Supply
3.135 V ~ 3.465 V
Current - Supply
150mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
256-PBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 14-6. T3 Stuff Block Structure
M1
Subframe
M2
Subframe
M3
Subframe
M4
Subframe
M5
Subframe
M6
Subframe
M7
Subframe
14.8 E13 Basics
E13 multiplexing is a two-step process of merging 16 E1 lines into a single E3 line. First, four of the E1
lines are merged into a single E2 rate and then four E2 rates are merged to form the E3. The first step of
this process is called a E12 function since it is merging E1 lines into E2. The second step of this process
is called a E23 function since it is merging E2 lines into a E3. The term E13 implies that both E12 and
E23 are being performed to map 16 E1 lines into the E3. These two steps are independent and will be
discussed separately.
Table 14-5. E Carrier Rates
E CARRIER
LEVEL
E1
E2
E3
F4
F4
F4
F4
F4
F4
F4
Stuff
Bit 1
Info
Bit 1
Info
Bit 1
Info
Bit 1
Info
Bit 1
Info
Bit 1
Info
Bit 1
NOMINAL DATA
Info
Bit 2
Stuff
Bit 2
Info
Bit 2
Info
Bit 2
Info
Bit 2
Info
Bit 2
Info
Bit 2
RATE (Mbps)
34.368
2.048
8.448
Info
Bit 3
Info
Bit 3
Stuff
Bit 3
Info
Bit 3
Info
Bit 3
Info
Bit 3
Info
Bit 3
Info
Bit 4
Info
Bit 4
Info
Bit 4
Stuff
Bit 4
Info
Bit 4
Info
Bit 4
Info
Bit 4
128 of 133
Info
Bit 5
Info
Bit 5
Info
Bit 5
Info
Bit 5
Stuff
Bit 5
Info
Bit 5
Info
Bit 5
Info
Bit 6
Info
Bit 6
Info
Bit 6
Info
Bit 6
Info
Bit 6
Stuff
Bit 6
Info
Bit 6
Info
Bit 7
Info
Bit 7
Info
Bit 7
Info
Bit 7
Info
Bit 7
Info
Bit 7
Stuff
Bit 7
Info
Bit 8
Info
Bit 8
Info
Bit 8
Info
Bit 8
Info
Bit 8
Info
Bit 8
Info
Bit 8
......
......
......
......
......
......
......
Info
Bit 84
Info
Bit 84
Info
Bit 84
Info
Bit 84
Info
Bit 84
Info
Bit 84
Info
Bit 84
DS3112
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