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OPEP-33-A4Q1RI
DELTA ELECTRONICS, INC.
7 Revision: S3
12/20/2007
www.deltaww.com
9. Recommended Interface Circuit
Transmitter
9. TD(p)
10. TD(n)
8.BiasCNT
6. VccT
7. VeeT
Receiver
100nF
100nF
2. VccR
5. RD(p)
4.RD(n)
3. SD
1. VeeR
100nF
10uF 100nF
10uF
100nF
1uH
1uH
3.3V
Protocol IC
SerDes IC
100ohm
BiasCNT
SD
DELTA GEPON ONU Module
Z0=50ohm
Z0=50ohm
RES
VccR
* RES is the internal 4.7K to 10K Ohms pull-up resistor.
Coupled
interface
EEPROM
SDA
SCL
12. SCL
11. SDA
RES
RES
3.3V
82ohm
130ohm
3.3V
130ohm
3.3V
82ohm
100ohm
100nF
100nF
DELTA
ONU
Host
Board
DELTA
ONU
Host
Board
Z0=50ohm
Z0=50ohm
150ohm150ohm
Z0=50ohm
Z0=50ohm
DC - Coupled interface AC - Coupled interface
Coupled
interface