1.25G Ethernet Optical Bypass Module
P
RODUCT
N
UMBER
:
OBM-B3BH2-E01
Specification
1.25G Ethernet Optical Bypass Module
Quad Ports 1.25G Base-SX
OBM–B3BH2–E01
Formerica OptoElectronics Inc
.
5F-11, No.38, Taiyuan St.,Zhubei City,
Hsinchu County 30265, Taiwan
Ph: +886-3-5600286 Fax: +886-3-5600239
www.formericaoe.com
Version 2.1
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1.25G Ethernet Optical Bypass Module
P
RODUCT
N
UMBER
:
OBM-B3BH2-E01
Features
Reliable Passive Fiber Bypass (Latching)
Low Return Loss
Available in 50/125μm Multimode Fiber
PCB Mountable Type
Fast Ethernet Standard Compliant
Digital Diagnostic SFF-8472 Rev.10.2 Compliant
SONET/SDH Standard Compliant
Two Dual LC Adapter
Class 1 Laser Product Complies with EN 60825-1
1.25 G-BASE-SX are available
Compliant with CE & FCC Standard
Compact Format and ROHS Compliant
Product Overview
Formerica’s Dual Port 1.25 Gbit/s Optical Bypass Module(OBM) is a compact module that
contains four 1.25 G Base-SX ports and can be integrated with I/O port controllers in a Network
Interface Card (NIC). This module is targeted for maintaining network connectivity when power
failure or system fails in an In-Line Network System.
Formerica’s Dual Port 1.25 Gbit/s Optical Bypass Module supports Normal and Bypass modes,
and can be configured to perform the Block mode. In Normal mode, two ports function
independently. In Bypass mode, signal packets received from one port are loop-backed to the
adjacent port. In Block mode, the module blocks the route.
Formerica’s Dual Port 1.25 Gbit/s Optical Bypass Module can Bypass or Block its I/O ports
upon a host system failure, power off, or by software request. Formerica’s Dual Port 1.25 Gbits
Optical Bypass Module can be integrated with any brand’s Controllers CPU. It is suitable for
connecting with in-line equipment for power failure or system maintenance.
When the In-Line unit is not on or is in bypass mode, the relays within the OBM are set to
bridge the optical signals directly through the optical switch, completely bypassing the In-Line
equipment.
Formerica’s OBM module provides excellent performance and reliable Optical Bypass and
Block functions. All routing fibers, switches and electronics network are enclosed in a safe and
compact housing which provides safe and space-saving to networking equipment.
Formerica OptoElectronics Inc
.
5F-11, No.38, Taiyuan St.,Zhubei City,
Hsinchu County 30265, Taiwan
Ph: +886-3-5600286 Fax: +886-3-5600239
www.formericaoe.com
Version 2.1
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1.25G Ethernet Optical Bypass Module
P
RODUCT
N
UMBER
:
OBM-B3BH2-E01
Block Diagram and Optical Paths
Dual Ports Optical Bypass Module
Link1 and Link2 indications:
Green:
Link
Speed1 and Speed2 indications:
Amber:
Data rate 1.25 G
Formerica OptoElectronics Inc
.
5F-11, No.38, Taiyuan St.,Zhubei City,
Hsinchu County 30265, Taiwan
Ph: +886-3-5600286 Fax: +886-3-5600239
www.formericaoe.com
Version 2.1
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1.25G Ethernet Optical Bypass Module
P
RODUCT
N
UMBER
:
OBM-B3BH2-E01
Module Pin Out
Formerica OptoElectronics Inc
.
5F-11, No.38, Taiyuan St.,Zhubei City,
Hsinchu County 30265, Taiwan
Ph: +886-3-5600286 Fax: +886-3-5600239
www.formericaoe.com
Version 2.1
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1.25G Ethernet Optical Bypass Module
P
RODUCT
N
UMBER
:
OBM-B3BH2-E01
84 PIN Assignments
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Name
GND
On-Line
GND
OE1 TX Disable
OE1 TX Fault
OE1 MOD-DEF2
OE1 MOD-DEF1
OE1 Vcc
OE1-Link
OE1-Speed
OE1 Rate Select
GND
I/O
Function
Note
O
I
O
I/O
I
I
I
I
1K Ohm to Ground
Transmitter Disable for OE-1
Transmitter Fault Indication for OE-1
2 Wire Serial ID Interface (Data) for OE-1
2 Wire Serial ID Interface (Clock) for OE-1
3.3V for Tx1 Power Supply and Rx1 Power Supply – 300mA
OE1-Link LED Indicator (Voltage Low/ LED Green)
OE1-Speed LED Indicator (Voltage Low / LED Orange)
NA
2
1
3
3
GND
OE2 TX Disable
OE2 TX Fault
OE2 MOD-DEF2
OE2 MOD-DEF1
OE2 Vcc
OE-2-Link
OE-2-Speed
OE2 Rate Select
GND
I
O
I/O
I
I
I
I
Transmitter Disable for OE-2
Transmitter Fault Indication for OE-2
2 Wire Serial ID Interface (Data) for OE-2
2 Wire Serial ID Interface (Clock) for OE-2
3.3V for Tx2 Power Supply and Rx2 Power Supply – 300mA
OE2-Link LED indicator (Voltage Low / LED Green)
OE2-Speed LED indicator (Voltage Low / LED Orange)
NA
2
1
3
3
GND
GND
Vcc5_1
OSW 1 N1
OSW 1 B1
OSW 1 State Output
5.0V Power Supply (OSW 1 Power)
Change to Normal mode for OSW1
Change to Bypass mode for OSW1
High=Normal Mode, Low=Bypass Mode for OSW1
Version 2.1
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I
O
8
7/9
7/9
Formerica OptoElectronics Inc
.
5F-11, No.38, Taiyuan St.,Zhubei City,
Hsinchu County 30265, Taiwan
Ph: +886-3-5600286 Fax: +886-3-5600239
www.formericaoe.com
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微控制器 MCU
