Datasheet

FTLX0011D4BNL Laserwire XFP Adapter Product Specification – July 2010
© Finisar Corporation - July 2010 Rev. B1 Page 3
II. Pin Descriptions
Pin Logic Symbol Name/Description (per INF-8077i) Laserwire-Adapter Interface Adapter-XFP Port Interface Note
1 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
2 VEE5 Optional -5.2 Power Supply – Not required NC NC
3 LVTTL-I
Mod-
Desel
Module De-select; When held low allows the
module to respond to 2-wire serial interface
commands
NC Pulled high in adapter 2
4 Interrupt
Interrupt (bar); Indicates presence of an
important condition which can be read over
the serial 2-wire interface, NOT
IMPLEMENTED
NC NC
5 LVTTL-I TX_DIS
Transmitter Disable; Transmitter laser source
turned off , NOT IMPLEMENTED.
NC Pulled high in adapter 2
6 VCC5 +5 Power Supply – Not used. NC NC
7 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
8 VCC3 +3.3V Power Supply Connected to Laserwire VCC pin 5 Pass through
9 VCC3 +3.3V Power Supply Connected to Laserwire VCC pin 5 Pass through
10 LVTTL-I SCL Serial 2-wire interface clock NC Connected to adapter EEPROM 3
11
LVTTL-
I/O
SDA Serial 2-wire interface data line NC Connected to adapter EEPROM 3
12 LVTTL-O Mod_Abs Module Absent; Indicates adapter not present. NC Pulled low in adapter 4
13 LVTTL-O Mod_NR Module Not Ready NC Loss of lock in Tx/Rx 2
14 LVTTL-O RX_LOS Receiver Loss of Signal indicator
Connected to Laserwire Fault output
pin 6
Pass through 3
15 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
16 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
17 CML-O RD- Receiver inverted data output Laserwire RX- pin 11 Retimed output 5
18 CML-O RD+ Receiver non-inverted data output Laserwire RX+ pin 10 Retimed output 5
19 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
20 VCC2 +1.8V Power Supply – Not used Not used NC
Power Down; When high, places the module
in the low power stand-by mode and on the
falling edge of P_Down initiates a module
reset, NOT IMPLEMENTED
21 LVTTL-I
P_Down/
RST
Reset; The falling edge initiates a complete
reset of the module including the 2-wire serial
interface, equivalent to a
power cycle. NOT IMPLEMENTED
NC Pulled high in adapter
22 VCC2 +1.8V Power Supply – Not used Not used NC
23 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
24 PECL-I RefCLK+
Reference Clock non-inverted input, AC
coupled on the host board – Not required
NC Internally terminated 6
25 PECL-I RefCLK-
Reference Clock inverted input, AC coupled
on the host board – Not required
NC Internally terminated 6
26 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
27 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
28 CML-I TD- Transmitter inverted data input Laserwire TX- pin 2 Retimed input 5
29 CML-I TD+ Transmitter non-inverted data input Laserwire TX+ pin 3 Retimed input 5
30 GND Module Ground Connected to Laserwire VEE Grounded in adapter 1
Notes:
1. Adapter circuit ground is isolated from adapter chassis ground within the adapter.
2. Pulled up with 10kΩ in adapter
3. Open collector; should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 3.15V and 3.6V.
4. Pulled low with 100Ω in adapter.
5. Per XFI electrical specs.
6. A Reference Clock input is not required. If present, it will be ignored. Differential 100Ω termination in adapter.