參數(shù)資料
型號: DS3112N
英文描述: RECT BRIDGE GPP 15A 600V GBJ
中文描述: 坦佩化T3/E3復(fù)用器3.3化T3/E3成幀器和M13/E13/G.747復(fù)用器
文件頁數(shù): 64/135頁
文件大?。?/td> 585K
代理商: DS3112N
DS3112
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6. M13/E13/G.747 MULTIPLEXER AND T2/E2/G.747 FRAMER
6.1 General Description
Note:
If the DS3112 is used as a standalone T3/E3 framer and the multiplexer functionality is disabled,
then the registers and functionality described in this section are not applicable and should be ignored by
the host.
On the receive side, the T2/E2/G.747 framer locates the frame boundaries of the incoming T2/E2/G.747
data stream and monitors the data stream for alarms and errors. Alarms are detected and reported in
T2/E2 Status Registers (T2E2SR1 and T2E2SR2), which are described in Section 6.3. The host can force
the T2/E2/G.747 framer to resynchronize via the T2E2RSY control bit in the MRID register (Section
4.1). On the transmit side, the device formats the outgoing data stream with the proper framing pattern
and overhead and can generate alarms. It can also inject errors for diagnostic testing purposes. The
transmit side of the framer is called the “formatter.”
T1/E1 AIS Generation
The DS3112 can generate an Alarm Indication Signal (AIS) for the T1 and E1 data streams in both the
transmit and receive directions. AIS for T1 and E1 signals is defined as an unframed all ones pattern. On
reset, the DS3112 will force AIS in both the transmit and receive directions on all 28 T1 and 16/21 E1
data streams. It is the host’s task to configure the device to pass normal traffic via the T1E1RAIS1,
T1E1RAIS2, T1E1TAIS1, and T1E1TAIS2 registers (Section 6.4).
6.2 T2/E2/G.747 Framer Control Register Description
Register Name:
T2E2CR1
Register Description:
T2/E2 Control Register 1
Register Address:
30h
Bit #
7
6
5
4
Name
n/a
TRAI7
TRAI6
TRAI5
Default
-
0
0
0
Bit #
15
14
13
12
Name
n/a
TAIS7
TAIS6
TAIS5
Default
-
0
0
0
Note:
Bits that are underlined are read-only; all other bits are read-write.
3
2
1
0
TRAI4
0
TRAI3
0
TRAI2
0
TRAI1
0
11
10
9
8
TAIS4
0
TAIS3
0
TAIS2
0
TAIS1
0
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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