F i n i s a r |
I.Pin Descriptions
Pin | Symbol | Name/Description | Ref. |
1 | VEET | Transmitter Ground (Common with Receiver Ground) | 1 |
2 | TFAULT | Transmitter Fault |
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3 | TDIS | Transmitter Disable. Laser output 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 | 4 |
8 | LOS | Loss of Signal indication. Logic 0 indicates normal operation | 5 |
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 |
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13 | RD+ | Receiver |
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14 | VEER | Receiver Ground (Common with Transmitter Ground) | 1 |
15 | VCCR | Receiver Power Supply |
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16 | VCCT | Transmitter Power Supply |
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17 | VEET | Transmitter Ground (Common with Receiver Ground) | 1 |
18 | TD+ | Transmitter |
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| and |
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19 | TD- | Transmitter Inverted DATA in. See TD+ |
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20 | VEET | Transmitter Ground (Common with Receiver Ground) | 1 |
Notes:
1.Circuit ground is internally isolated from chassis ground.
2.Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3.Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 5.5V. MOD_DEF(0) pulls line low to indicate module is plugged in.
4.Finisar 2x receiver achieves simultaneous 1x and 2x operation without active control.
5.LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 5.5V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
1
VeeT
VeeT
TD-
20
19
2
3
TXFault
TD+
TX Disable
VeeT
18
17
Towards
Bezel
4
5
6
VccT
VccR
16
15
Towards
ASIC
7
VeeR
Rate Select
14
8
LOS
RD+
RD-
13
12
9
10
VeeR
VeeR
VeeR
11
© Finisar Corporation | PRELIMINARY and Confidential | Page 3 |
Rev C, February 2005 |
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