Datasheet

Datasheet Transceiver
Pin Assignment
Pin Symbol Description Notes
1VeeT Module Ground(Common with Receiver Ground) 1
2 TX_FaultTransmitter Fault, Low: normal; High: abnormal 2
3 TX_Disable
Transmitter Disable
High: Transmitter off
Low: Transmitter on
3
4 SDA 2-Wire Serial Interface Data Line (Same as MOD-DEF2 in INF-8074i) 4
5 SCL 2-Wire Serial Interface Data Line (Same as MOD-DEF2 in INF-8074i) 4
6 Mod_ABS Module Absent, Connect to VeeT or VeeR in Modul
e4
7 RS0 no connection
8 RX_LOS
Receiver Loss of Signal indication
High: loss of signal
Low: signal detected
5
9 RS1 No connection required 1
10 VeeR Receiver Ground 1
11 VeeR Receiver Ground 1
12 RD- Receiver Inverted DATA out. AC Coupled. CML-O
13 RD+ Receiver Non-inverted DATA out. AC Coupled. CML-O
14 VeeR Receiver Ground 1
15 VccR Receiver Power Supply
16 VccT Transmitter Power Supply
17 VeeT Transmitter Ground 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled. CML-I
19 TD- Transmitter Inverted DATA in. AC Coupled. CML-I
20 SDA Transmitter Ground 1
*Notes 1: Circuit ground is internally isolated from chassis ground.
*Notes 2: TFAULT is an open collector/drain output, which should be pulled up with a 4.7 k – 10 k Ohms resistor on the host board if intended for use.
Pull up voltage should be between 2.0 V to Vcc + 0.3 V.A high output indicates a transmitter fault caused by either the TX bias current or
the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled
to <0.8 V.
*Notes 3: Laser output disabled on TDIS >2.0 V or open, enabled on TDIS <0.8 V.
*Notes 4: Should be pulled up with 4.7 kΩ- 10 kΩ host board to a voltage between 2.0 V and 3.6 V. MOD_ABS pulls line low to indicate module is
plugged in.
*Notes 5: LOS is open collector output. It should be pulled up with 4.7 kΩ – 10 kΩ on host board to a voltage between 2.0 V and 3.6 V. Logic 0
indicates normal operation; logic 1 indicates loss of signal.