安捷伦网口测试

Ethernet 10 Mb/s
Fast
100 Mb/s
Ethernet
Gigabit 4 x 250 Mb/s Ethernet
2 twisted pairs, 100 ohms, Category 3 or higher, RJ-45 connectors
2 twisted pairs, 100 ohms, Category 3 or 5 ("Cat-5"), RJ-45 connectors
Sent at the end of data packet to indicate end of transmission. Pulse width is 300 or 350ns depending on whether the last bit was ‘0’ or ‘1’.
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All ‘1’s Manchester encoded signal, essentially a 5 MHz signal. Used in harmonic test to ensure all harmonics are 27 dB down from the fundamental.
100BASE-TX 测试码型
Random Data
• 数据加扰保持链路上的DC平衡以及足够多的边沿进行CDR • Manchester 编码 (电平转换表征逻辑1) • 加扰的NRZ数据编码成MLT-3码 • 所有的100BASE-TX测试都在100BASE-TX Random Data下完成
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IEEE802.3-2005 Sub clause 14.3.1.2.5 Common mode output voltage
IEEE802.3.2005 Sub clause 14.3.1.2.2 and Annex B.4.3.2
IEEE802.3.2005 Sub clause 14.3.1.3.4 and Annex B.4.3.5
8
Unused RD-
Unused Unused
BI_DCBI_DBBI_DD+ BI_DD-
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规范要求的测试内容
10BASE-T
参考规范
测试项目描述
IEEE802.3.2005 Sub clause 14.3.1.2.1, Template Link Pulse with TPM Figure 14-12
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根据测试需要选择测试项目， 或者全部选中
10BASE-T 测试码型
First signal in auto-negotiation to test link connectivity. Sent every 16ms until a response is received.
Differential Manchester encoded signal with pre-emphasis.
Ethernet Electrical Performance Test
安捷伦科技有限公司 技术咨询热线:8008100189
以太网技术特征
标准
常用称谓 码率
连接
10Base-T (802.3i)
100Base-TX (802.3u/ANSIX3. 263-1995) 1000Base-T (802.3ab)
ANSI X3.263-1995, Section 9.1.5
Transmit jitter
UTP AOI template UTP +Vout differential output voltage UTP –Vout differential output voltage Transmitter Return Loss
ANSI X3.263-1995, Section 9.2.2 Receiver Return Loss
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根据测试需要选择测试项 目，或者全部选中
规范要求的测试内容
1000BASE-T
参考规范
IEEE802.3.2005 Sub clause 40.6.1.2.1
IEEE802.3.2005 Sub clause 40.6.1.2.1 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.1 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.1 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.1 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.2 IEEE802.3.2005 Sub clause 40.6.1.2.3 IEEE802.3.2005 Sub clause 40.6.1.2.2
1000BASE-T 测试码型
• 1000BASE-T数据经过4b/5b编码保持链路DC平 衡和足够的边沿进行 CDR
• 使用 5 信号电平(PAM-5) • 所有的1000BASE-T 测试都使用测试信号测试 • 每种测试模式通过特定的MII 寄存器设置 • Test Mode 2/3 用于抖动测试，信号使用交替的
ANSI X3.263-1995, Section 9.1.3
Peak differential output voltage
IEEE802.3.2005 Sub clause 14.3.1.2.1 Jitter with TPM and Annex B.4.1 and B.4.3.3
IEEE802.3.2005 Sub clause 14.3.1.2.1 Jitter without TPM and Annex B.4.1 and B.4.3.3
IEEE802.3.2005 Sub clause 14.3.1.2.1, Template Link Pulse without
Figure 14-12
TPM
IEEE802.3.2005 Sub clause 14.3.1.2.1 Harmonic content
IEEE802.3.2005 Sub clause 14.3.1.2.1, Template MAU Figure 14-9, Table 14-1
IEEE802.3-2005 Sub clause 40.8.3.3
IEEE802.3-2005 Sub clause 40.6.1.2.5 IEEE802.3-2005 Sub clause 40.6.1.2.5 IEEE802.3-2005 Sub clause 40.6.1.2.5 IEEE802.3-2005 Sub clause 40.6.1.2.5 IEEE802.3-2005 Sub clause 40.8.3.1 IEEE802.3-2005 Sub clause 40.6.1.2.4
测试项目描述 Difference A, B peak output voltage* Point A peak output voltage* Point A template test* Point B peak output voltage* Point B template test* Point C peak output voltage* Point C template test* Point D peak output voltage* Point D template test* Point F template test* Point G droop test* Point H template test* Point J droop test* MDI common mode output voltage Jitter master filtered Jitter master unfiltered Jitter slave filtered Jitter slave filtered MDI Return Loss Transmitter Distortion*
测试项目描述 +Vout overshoot +Vout overshoot decay -Vout overshoot -Vout overshoot decay AOI +Vout rise time AOI +Vout rall time AOI +Vout rise/fall time symmetry AOI -Vout rise time AOI -Vout fall time AOI -Vout rise/fall time symmetry Duty cycle distortion
+2, -2, +2, -2序列 • Test Modes 2 and 3 区别在于DUT数据的时钟源 • 抖动测试需要测试DUT的 TX_TCLK
Test Mode 2/3
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Test Mode 1 Test Mode 4
如何获得 Ethernet 测试码型
10/100/1000BASE-T 设备输出测试码型方法是半导体芯片供应 商特定的。
ANSI X3.263-1995, Section 9.1.4 Signal amplitude symmetry
ANSI X3.263-1995, Section 9.1.9 & IEEE802.3-2005 Sub clause 25.4.5 ANSI X3.263-1995, Annex J ANSI X3.263-1995, Section 9.1.2.2 ANSI X3.263-1995, Section 9.1.2.2
Pin 10BASE-T / 1000BASE-T
100BASE-TX
1
TD+
BI_DA+2源自TD-BI_DA-
3
RD+
BI_DB+
4
Unused
BI_DC+
5
Computer RJ45 /
6
8P8C connector
TD/RD: Transmit Data/Receive Data
7
BI_Dx: Bi-directional Pair x
IEEE802.3.2005 Sub clause 14.3.1.2.1, Template TP_IDL with TPM Figure 14-10
IEEE802.3.2005 Sub clause 14.3.1.2.1, Template TP_IDL without TPM Figure 14-10
4 twisted pairs, 100 ohms, Category 5, RJ-45 connectors
最大长 度
100 m
100 m
100 m
Data rate
1000Base-T Baseband
Twisted pair
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10/100/1000BASE-T 连接器引脚排 列
Twisted-pair cable
Transmitter Return Loss Receiver Return Loss
Page 4
根据测试需要选择测试项 目，或者全部选中
规范要求的测试内容
100BASE-TX
参考规范 ANSI X3.263-1995, Section 9.1.3 ANSI X3.263-1995, Section 9.1.3 ANSI X3.263-1995, Section 9.1.3 ANSI X3.263-1995, Section 9.1.3 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.6 ANSI X3.263-1995, Section 9.1.8