參數(shù)資料
型號(hào): LXT6251A
英文描述: ATM/SONET MAPPER|CMOS|QFP|208PIN|PLASTIC
中文描述: 的ATM / SONET的映射器|的CMOS | QFP封裝| 208PIN |塑料
文件頁數(shù): 9/76頁
文件大小: 995K
代理商: LXT6251A
21 E1 SDH Mapper
LXT6251A
Datasheet
9
Table 1. Signal Description Nomenclature
Type
Description
I
Standard input signal
O
Standard output signal
I/O
Input and output signal
TTLin
1
Supports TTL input levels
HiZ
1
High Impedance
1. Some signals indicate buffer strength. For example, HiZ-4ma indicates a
high-impedance buffer capable of sourcing 4 ma.
Table 2. Pin Descriptions (Sheet 1 of 7)
Pin #
Name
Type
Function
E1 Transmit and Receive Ports
44
MTD1
I
TTL in
Transmit Tributary NRZ Data Port # 1.
Input E1 NRZ data input at
2.048 Mbit/s
47
MTD2
I
TTL in
Transmit Tributary NRZ Data Port # 2
58
MTD3
I
TTL in
Transmit Tributary NRZ Data Port # 3
61
MTD4
I
TTL in
Transmit Tributary NRZ Data Port # 4
67
MTD5
I
TTL in
Transmit Tributary NRZ Data Port # 5
70
MTD6
I
TTL in
Transmit Tributary NRZ Data Port # 6
75
MTD7
I
TTL in
Transmit Tributary NRZ Data Port # 7
82
MTD8
I
TTL in
Transmit Tributary NRZ Data Port # 8
87
MTD9
I
TTL in
Transmit Tributary NRZ Data Port # 9
90
MTD10
I
TTL in
Transmit Tributary NRZ Data Port # 10
96
MTD11
I
TTL in
Transmit Tributary NRZ Data Port # 11
99
MTD12
I
TTL in
Transmit Tributary NRZ Data Port # 12
109
MTD13
I
TTL in
Transmit Tributary NRZ Data Port # 13
112
MTD14
I
TTL in
Transmit Tributary NRZ Data Port # 14
117
MTD15
I
TTL in
Transmit Tributary NRZ Data Port # 15
121
MTD16
I
TTL in
Transmit Tributary NRZ Data Port # 16
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