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参数资料
| 型号： | FCMJ-8521-3 |
| 元件分类： | 光收发 |
| 英文描述： | FIBER OPTIC TRANSCEIVER, 1250Mbps(Tx), 1250Mbps(Rx), PANEL MOUNT |
| 文件页数： | 2/7页 |
| 文件大小： | 198K |
| 代理商： | FCMJ-8521-3 |
FCMJ-8520/8521-3 1000BASE-T SFP Product Specification
Fin i sar
Finisar Corporation March 16, 2005 Rev H
Page 2
I.
SFP to Host Connector Pin Out
Pin
Symbol
Name/Description
Note
1
VEET
Transmitter ground (common with receiver ground)
1
2
TFAULT
Transmitter Fault. Not supported
3
TDIS
Transmitter Disable. PHY disabled on high or open
2
4
MOD_DEF(2)
Module Definition 2. Data line for serial ID
3
5
MOD_DEF(1)
Module Definition 1. Clock line for serial ID
3
6
MOD_DEF(0)
Module Definition 0. Grounded within the module
3
7
Rate Select
No connection required
8
LOS
Loss of Signal indication.
4
9
VEER
Receiver ground (common with transmitter ground)
1
10
VEER
Receiver ground (common with transmitter ground)
1
11
VEER
Receiver ground (common with transmitter ground)
1
12
RD-
Receiver Inverted DATA out. AC coupled
13
RD+
Receiver Non-inverted DATA out. AC coupled
14
VEER
Receiver ground (common with transmitter ground)
1
15
VCCR
Receiver power supply
16
VCCT
Transmitter power supply
17
VEET
Transmitter ground (common with receiver ground)
1
18
TD+
Transmitter Non-Inverted DATA in. AC coupled
19
TD-
Transmitter Inverted DATA in. AC coupled
20
VEET
Transmitter ground (common with receiver ground)
1
Notes: 1. Circuit ground is connected to chassis ground
2. PHY disabled on TDIS > 2.0V or open, enabled on TDIS < 0.8V
3. Should be pulled up with 4.7k – 10k Ohms on host board to a voltage between 2.0 V and 3.6 V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4. LVTTL compatible with a maximum voltage of 2.5V. Not supported on FCMJ-8521-3.
Table 1. SFP to host connector pin assignments and descriptions
VeeT
VeeR
TD-
TD+
RD+
RD-
VccT
VccR
VeeT
VeeR
TXFault
MOD-DEF(2)
MOD-DEF(1)
MOD-DEF(0)
Rate Select
LOS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Towards
ASIC
Towards
Bezel
TX Disable
VeeR
Figure 1. Diagram of host board connector block pin numbers and names
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