SCP6G78-GL-BME - Sumitomo Electric Industries, Ltd.

Specification : TS-S08D114A
November, 2008
Technical Specification
for
Small Form Factor Pluggable (SFP)
SCP6G78-GL-##E (Diagnostic Monitoring with External Calibration)
other
2488.32Mbps
________
____
other
________ ____
Single 3.3 V
other
________ ____
1.3 µ m
1.55 µ m
other
________ ____
W / D iagnostic M onitor
W /O D iagnos tic M onitor
155.52M bp s
622.08M bps
Short H aul
Long H a ul
Interm edia te R each
Long R each
Single 5.0 V
Sumitomo Electric reserves the right to make changes in this specification without prior notice.
Sumitomo Electric Industries, Ltd. and ExceLight Communications, Inc., have been granted license to
the following patents under a license agreement with Finisar Corporation: US 5,019,769, US 6,439,918 B1
#Safety Precaution
Symbols This specification uses various picture symbols to prevent possible injury to operator or other
persons or damage to properties for appropriate use of the product. The symbols and definitions are as shown below. Be sure to be familiar
with these symbols before reading this specification.
Warning
Caution
Wrong operation without following this instruction may lead to human death or serious injury.
Wrong operation without following this instruction may lead to human injury or property damage.
Example of picture symbols
indicates prohibition of actions. Action details are explained thereafter.
indicates compulsory actions or instructions. Action details are explained thereafter.
(SCP6G78-GL)
- 1 / 20 -
Specification : TS-S08D114A
November, 2008
1. General
Features and applications of SCP6G78-GL are listed below.
Features
* RoHS6 Compliant
* Compliant with SFP MSA.
* SFF-8472 rev.9 compliant diagnostic monitoring implemented
* SDH STM-16 L16.2/SONET OC-48 LR-2 Compliant
* Power Supply Voltage
Single +3.3V
* Built-in DC-DC and APD Bias Control Circuit
* Compact Package Size
56.5 X 13.7 X 8.6 mm
* Electrical Interface
AC coupled for DATA, LVTTL for Tx Disable, open collector output for
LOS and Tx Fault. Circuit ground is internally isolated from frame ground.
* Fiber Coupled Power
-2 to +3dBm ( SMF )
* Input Power Range
-28 to -9dBm ( SMF )
* Optical Reflectance
-27dB ( max )
* Connector Interface
LC Duplex Connector
* Serial ID Functionality
* Alarm and Warning Flags
Applications
> SONET/LR, SDH/LH Application
> Metropolitan Area Network
SFP MODULE
2. Block Diagram
HOST BOARD
M o n ito r
T D+
LD
P IN P D
Las er
100 Ω
D rive r
T D-
V c cT
VccT
4.7 k Ω
4.7k to
10k Ω
T X D isa b le
A u t o m a t ic P o w e r
C o n tro l C ir cu it
T X F a u lt
(A) Transmitter
VccR
D C -D C
C o n ve r te r
VccR
4.7k to
A P D B ia s
C o n tro l
10k Ω
LO S
C o m p a ra to r
C ircu it
A PD
R D+
P re - A m p .
* Temperature
* Supply Voltage
* Tx Bias Current
* Tx Output Power
* Rx Received Power
Pos t Am p.
100 Ω
R D-
(B) Receiver
VccT
D ia g n o st ic
M o n it o r
4.7k to
M O D - D E F (0 )
M O D - D E F (1 )
EEPR OM
M O D - D E F (2 )
10
0Ω
150
Ω
(C) EEP RO M
Figure 1. Block Diagram
Caution
Do not disassemble this product. Otherwise, failure, electrical shock, overheating or fire may occur.
(SCP6G78-GL)
- 2 / 20 -
10k Ω
Specification : TS-S08D114A
November, 2008
3. Package Dimensions
* Bail color is blue
Note1 All Dimensions in mm
Note2 Dimensions with parentheses indicate the bail and latch release position
Figure 2. Outline Dimensions
(SCP6G78-GL)
- 3 / 20 -
Specification : TS-S08D114A
November, 2008
4. Pin Assignment
T ow ards
B ez el
1
VeeT
2
T XF a u l t
3
T X D is a b le
4
M O D -D E F (2 )
5
M O D -D E F (1 )
6
M O D -D E F (0 )
7
NUC
8
LOS
9
VeeR
10
VeeR
VeeT
20
TD-
19
TD+
18
VeeT
17
VccT
16
VccR
15
VeeR
14
RD+
13
RD-
12
VeeR
11
T ow ards
A S IC
Figure 3. Diagram of Host Board Connector Block Pin Numbers and Names
Pin
Num.
Name
1
2
VeeT
TX Fault
3
Plug
Seq.
Function
1
3
TX Disable
Transmitter Ground
Transmitter Fault
Indication
Transmitter Disable
4
5
6
7
MOD-DEF2
MOD-DEF1
MOD-DEF0
NUC
Module Definition 2
Module Definition 1
Module Definition 0
NUC
3
3
3
3
8
9
10
11
12
13
14
15
16
17
18
19
20
LOS
VeeR
VeeR
VeeR
RDRD+
VeeR
VccR
VccT
VeeT
TD+
TDVeeT
Loss of Signal
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Receiver Data Out
Receiver Data Out
Receiver Ground
Receiver Power
Transmitter Power
Transmitter Ground
Transmitter Data In
Inv. Transmitter Data In
Transmitter Ground
3
1
1
1
3
3
1
2
2
1
3
3
1
3
Notes
Note 1
Note 2
Module disables on high or open
Note 3, 2 wire serial ID and Interface
Note 3, 2 wire serial ID and Interface
Note 3 Grounded internally via 100Ω
No User Connection,
reserved for future function.
Note 4
Note 5
Note 5
3.3V± 5%
3.3V± 5%
Note 6
Note 6
Plug Seq.: Pin engagement sequence during hot plugging.
(SCP6G78-GL)
- 4 / 20 -
Specification : TS-S08D114A
November, 2008
Note
1) Tx Fault is an open collector output that shall be pulled up with a 4.7k - 10kΩ resistor on the host board. Pull
up voltage between 2.0V and VccT+0.3V. When high, output indicates a laser fault of some kind. Low
indicates normal operation.
Tx Fault is asserted when bias current of laser exceeds the factory-calibrated threshold level.
The laser output is not turned off in case of Tx Fault.
2) Tx Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module
with a 4.7kΩ resistor.
3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k - 10kΩ resistor on
the host board. The pull-up voltage shall be VccT.
Mod-Def 0 indicates that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
4) LOS (Loss of Signal) is an open collector output that shall be pulled up with a 4.7k - 10kΩ resistor. Pull up
voltage between 2.0V and VccR+0.3V. Low indicates normal operation.
5) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should
be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and
is thus not required on the host board.
6) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the
host board.
Figure 4. SFP Host Board Mechanical Layout
(SCP6G78-GL)
- 5 / 20 -
Specification : TS-S08D114A
November, 2008
PIN 1
PIN 20
PIN 10
PIN 11
Figure 5. SFP Host Board Mechanical Layout (Cont.)
Figure 6. Recommended Bezel Design
(SCP6G78-GL)
- 6 / 20 -
Specification : TS-S08D114A
November, 2008
5. Absolute Maximum Ratings
Parameter
Storage Ambient Temperature
Symbol
Ts
Operating Case Temperature
Tc
Min.
-40
-5
-5
-40
Typ.
Max.
85
70
85
85
-5.0
4.0
VccT+0.3
2.5
Unit
Note
1
2
3
4
°C
Optical Damage Input Level
Pin
dBm
Supply Voltage
VccT,R
0
V
Input Voltage
Vi
0
V
5
Dif ferential Input Voltage Sw ing (TD+,TD-)
Vin
Vp-p
Notes
1. No condensation allow ed. 2. SCP6G78-GL-#N_ 3. SCP6G78-GL-#M_ 4. SCP6G78-GL-#W_ 5. For MOD-DEF (1:2), Tx Disable.
Warning
Use the product with the rated voltage described in the specification. If the voltage exceeds the maximum rating, overheating or
fire may occur.
Caution
Do not store the product in the area where temperature exceeds the maximum rating, where there is too much moisture or
dampness, where there is acid gas or corrosive gas, or other extreme conditions. Otherwise, failure, overheating or fire may
occur.
6. Electrical Interface
( Unless otherwise specified, VccT,R = 3.135 to 3.465 V and all operating temperature shall apply. )
6-1. Operating Characteristics
Parameter
Symbol
Min.
Typ.
Supply Voltage
VccT,R
3.135
3.30
Power Dissipation
Pw
Note 1. 2488.32Mbps, PRBS 2^23-1, NRZ, 50% duty cycle data.
Max.
3.465
1200
Unit
V
mW
Note
1
6-2. Transmitter side
Symbol
Min.
Typ.
Max.
Parameter
Dif ferential Input Voltage Sw ing (TD+,TD-)
Vin
0.3
2.4
Input Dif ferential Impedance
Zin
80
100
120
Tx Fault
Fault
Vf aultH
2.0
VccT+0.3
Normal
Vf aultL
0
0.8
Tx Disable
Dis able
Vdi
2.0
Vcc T
Enable
Vei
0
0.80
Tdis Input Current
ldi
-1
50
Notes
1. Refer to Figure 7.
2. Tx Fault is pulled up to VccT w ith a 4.7k - 10kΩ resistor on the host board.
When high, output indicates a laser f ault of some kind. Low indicates normal operation.
3. Ref er to P.10 about Tx Fault and Tx Shutdow n behav ior.
4. Sink Current : 1mA
5. Tx Disable input is internally terminated to VccT via 4.7 kΩ resistor. If pin3 is lef t open, Tx is disabled.
Unit
Vp-p
Ω
V
V
V
V
μA
Note
1
2, 3
2, 3, 4
5
6-3. Receiver side
Parameter
Symbol
Min.
Typ.
Max.
Dif ferential Output Voltage Sw ing (RD+,RD-)
Vout
0.5
1.2
LOS
High
Vloh
2.0
VccR+0.3
Output Voltage
Low
Vlol
0
0.8
Data Rise / Fall Time
tr / tf
175
Notes
1. Vcc=+3.3V +/-5%, Output load resistance Rdif =100Ω. Ref er to Figure1-(B).
Refer to Figure7. about definition of diff erential sw ing.
2. LOS is pulled up to VccR w ith a 4.7k - 10kΩ resistor on the host board. Low indicates normal operation.
3. Sink Current : 1mA, 4. 20 to 80%, 2488.32Mbps, PRBS 2^23-1, NRZ, 50% duty cycle data
Unit
Vp-p
V
V
psec
Note
1
2
2, 3
4
B i a s V o lt a g e
Figure 7. Definition of Differential
In p u t / O u tp u t V o l ta g e S w i n g ( V s w i n g )
D if fe r e n t ia l In p u t / O u t p u t V o lt a g e S w i n g ( V in / V o u t) = 2 X V s w in g
(SCP6G78-GL)
- 7 / 20 -
Input / Output Voltage Swing
Specification : TS-S08D114A
November, 2008
6-4. Module Definition
Symbol
Min.
Max.
Unit
MOD_DEF(1:2)
Parameter
High
Vih
0.7VccT
VccT+0.3
V
Input Voltage
Low
Vil
0
0.3VccT
V
MOD_DEF(2)
High
Voh
2.0
VccT
V
1
Output Voltage
Low
V
1, 2
Vol1
Typ.
0
0.4
Note
1
Notes
1. They shall be pulled up to VccT with a 4.7k - 10kΩ resistor on the host board.
2. Sink Current : 3mA
7. Optical Interface
( Unless otherwise specified, VccT,R = 3.135 to 3.465 V and all operating temperature shall apply. )
7-1. Transmitter side
Parameter
Average Output Pow er (Enable)
Average Output Pow er (Disable)
Extinction Ratio
Center Wavelength
Spectral Width (-20dB Width)
Dispersion Penalty
Side Mode Suppression Ratio
Eye Mask for Optical Output
Jitter Generation
Symbol
Min.
Typ.
Max.
Unit
Po
-2.0
3.0
dBm
Pdis
-45
dBm
Er
8.2
dB
1500
1580
nm
λc
1
nm
Δλ
Dp
2.0
dB
Sr
30
dB
Compliant w ith Telcordia GR-253 CORE and ITU G.957
Tjpk
0.1
UIp-p
Tjrms
0.01
UIrms
Note
1
1, 2
1
3
N ote 1. Measured at 2488.32Mbps PRBS2^23-1, 50% duty cy cle, N R Z
2. Maximum dispersion v alues correspond to the approximat e worst-case dispersion (~1600ps/nm) at 1550nm.
3. SON ET OC-48c data pattern f illed with a 2^23 -1 PRBS pay load.
Measured with a bandpass f ilt er hav ing a high-pass cutof f f reguency of 12kHZ and a low-pass cutof f f reguency of 20MHZ .
1 .2 5
0 .2 0
Normalized Amplitude
1 .0 0
L o gic " 1 "
UI
0 .7 5
0 .2 5
0
L o gic " 0 "
- 0 .2 5
0
T i m e ( U I)
1 .0
Figure 8. Optical Pulse Mask with Fourth Order Bessel-Thomson Filter Specified in ITU-T G.957
Warning
Do not look at the laser beam projection area (e.g. end of optical connector) with naked eyes or through optical equipment
while the power is supplied to this product. Otherwise, your eyes may be injured.
7-2. Receiver side
Parameter
Center Wav elength
Minimum Sens itiv ity
Overload
LOS A ctiv ation Level
LOS Deac tiv ation Level
LOS Hysteres is
Optical Reflectance
N ote
1. BER=10^-10
(SCP6G78-GL)
Symbol
Pmin
Pmax
PLa
PLd
Phys
Or
Min.
1500
-9.0
-45.0
-44.7
0.3
2. Measured at 2488.32Mbps, PRBS 2^23-1, N R Z
- 8 / 20 -
Ty p.
Max .
1580
-28.0
-28.3
-28.0
6.0
-27
Unit
nm
dBm
dBm
dBm
dBm
dB
dB
Note
1, 2
2
Specification : TS-S08D114A
November, 2008
7-3. Transceiver Timing Characteristics
Parameter
Tx Disable Assert Time
Tx Disable Negate Time
Time to Initialize
Tx Fault Assert Time
Tx Disable to Reset
LOS Assert Time
LOS Deassert Time
Serial ID Clock Rate
Symbol
t_off
t_on
t_init
t_fault
t_reset
t_loss_on
t_loss_off
f_serial_clock
Min.
Typ.
Max.
10
1
300
100
10
2.3
100
100
100
Unit
us
ms
ms
us
us
us
us
kHz
Note
1
2
3
4
5
6
7
Notes
1. Time from rising edge of TX Disable to when the optical output falls below 10% of nominal.
2. Time from falling edge of TX Disable to when the modulated optical output rises above 90% of nominal.
3. From power on or negation of TX Fault using TX Disable. 4. Time from fault to TX fault on.
5. Time TX Disable must be held high to reset TX_fault.
6. Time from LOS state to RX LOS assert. 7. Time from non-LOS state to RX LOS deassert.
TX_FAULT
Vcc>3.15V
TX_DISABLE
TX_FAULT
Transmitted Signal
TX_DISABL E
t_off
t_on
Transmitted Signal
TX_DISABLE timing during normal operation.
t_init
Power on initialization of SFP transceiver, TX_DISABLE
negated
Vcc >3.15V
VccT >3.15V
TX_FAULT
TX_FAULT
TX_DISABLE
TX_DISABLE
Transmitted Signal
Transmitted Signal
Insertion
t_init
t_init
Example of initialization during hot plugging,
TX_DISABLE negated
Power on initialization of SFP,TX_DISABLE asserted
Occurrence of Fault
Occurrence of Fault
TX_FAULT
TX_FAULT
TX_DISABLE
TX_DISABLE
Transmitted Signal
t_fault
t_re set
Detection of transmitter safety fault condition
t_init
SFP shall clear TX_ FAULT in <t_init if the failure transient
Successful recovery from transient safety fault condition
(Except for Type "B" and "Y". Refer to next page.)
Optical Signal
Occurrence of loss
LOS
t_loss_on
t_loss_off
Timing of LOS detection
Figure 9. Transceiver Timing Charts
(SCP6G78-GL)
- 9 / 20 -
Specification : TS-S08D114A
November, 2008
7-4. Tx_Fault / Tx Shutdown Options
SCP6G78-GL-
#E
Tx_Fault Type
Type Actuator
Tx Shutdown on Tx Fault
A
Bail
No
B
C
Bail
Bail
No
Yes
Type:"A"
Occurrence of Fault
TX_FAULT
TX_DISABL E (LOW )
Transmitted Signal
Type:"B"
Occurrence of Fault
TX_FAULT
TX_DISABL E (LOW )
Transmitted Signal
Type:"C"
Occurrence of Fault
TX_FAULT
TX_DISABL E (LOW )
Transmitted Signal
Figure 10. Part Number Identification For Tx_Fault / Tx Shutdown Behavior
(SCP6G78-GL)
- 10 / 20 -
Specification : TS-S08D114A
November, 2008
8. Digital Diagnostic Memory Map
1010000X(A0h)
1010001X(A2h)
0 Serial ID (96bytes)
section 8.1
0 Alarm and warning threshold
(56bytes)
55
56 Cal constants (40bytes)
95
96 Vendor specific (32bytes)
95
96 Realtime diagnostic interface
(24bytes)
section 8.2
119
120 Vendor specific (136bytes)
127
128 Reserved (128bytes)
255
255
Figure 11. Digital Diagnostic Memory Map
(SCP6G78-GL)
- 11 / 20 -
Specification : TS-S08D114A
November, 2008
9. EEPROM Serial ID Memory Contents
The data can be read using the 2-wire serial CMOS EEPROM protocol of the Atmel AT24C01A or equivalent.
2 wire address 1010000X (A0h)
Address Name of field
Hex
ASCII
Description
BASE ID FIELDS
03
Identifier
SFP Transceiver
04
Ext. Identifier
Connector
07
LC Connector
00
0C
OC-48 LR-2
00
00
Transceiver
00
00
00
00
05
Encoding
SONET Scrambled
BR, Nominal
19
2.5Gbps
00
Reserved
Length(9um) - km 50
80km
Length (9um)
FF
00
Length (50um)
Length (62.5um) 00
Length (Copper) 00
Reserved
00
53
S
75
u
6D
m
69
i
74
t
6F
o
6D
m
6F
o
Vendor name
45
E
6C
l
65
e
63
c
74
t
72
r
69
i
63
c
00
Reserved
00
00
Vendor OUI
5F
53
S
43
C
50
P
36
6
47
G
37
7
38
8
2D
Vendor PN
47
G
4C
L
2D
41, 42, 43
Actuator and Tx_Fault Type
A, B, C
4E or 4D or 57 N or M or W
45
E
Diagnostics(Ext.Cal)
20
20
41 to 5A
A to Z
Variable
20
Vendor rev
20
20
06
1550nm
Wavelength
0E
Reserved
00
Note1
CC BASE
Address Name of field
0
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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
Note1. Address 63 is check sum of bytes 0-62
Note3. Address 84-91 is Date code
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
Vendor SN
Note2
Date code
Note3
Diagnostic Monitoring Type 58(Note 4)
Enhanced Options
B0(Note 4)
01
SFF-8472 Compliance
CC EXT
Note5
VENDOR SPECIFIC ID FIELDS
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Read-only
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Note2. Address 68-83 is Vendor Serial Number
- 12 / 20 -
Description
Year
Month
Note4. Refer to Section 10.( Enhanced Monitoring Functions )
Note5. Address 95 is check sum of bytes 64-94.
(SCP6G78-GL)
Options
BR, max
BR, min
Hex
ASCII
EXTENDED ID FIELDS
00
1A
00
00
Diagnostics(Ext.Cal)
Diagnostics
Diagnostics
Specification : TS-S08D114A
November, 2008
10. Enhanced Monitoring Functions (SCP6G78-GL-##E)
Bias
TX Power
RX Power
A/D
Vcc
MOD-DEF(1)
MOD-DEF(2)
Temp.
Serial I/F
Figure 12. Block Diagram
Diagnostic Monitoring Type, 2 wire address A0h
Data Address
92
Bits
7
92
6
92
92
92
5
4
3
92
2
92
1-0
Description
Reserved for legacy diagnostic
implementations. Must be ‘0’ for compilance
with SFF-8472.
Digital diagnostic monitoring implemented
(described in SFF-8472). Must be ‘1’ for
compliance with SFF-8472.
Internally Calibrated
Externally Calibrated
Received power measurement type
0 = OMA, 1 = Average Power
Address change required.
(Refer to SFF-8472)
Reserved
Status(SEI)
0
1
0
1
1
0
0
Enhanced Options, 2 wire address A0h
Data Address
93
Bits
7
93
6
93
5
93
4
93
3
93
2-0
(SCP6G78-GL)
Description
Status(SEI)
Optional Alarm/warning flags implemented for
1
all monitored quantities
Optional Soft TX_DISABLE control and
0
monitoring implemented
Optional Soft TX_FAULT monitoring
1
implemented
Optional Soft RX_LOS monitoring
1
implemented
Optional Soft RATE_SELECT control and
0
monitoring implemented
Reserved
0
- 13 / 20 -
Specification : TS-S08D114A
November, 2008
11. Calibration Calculation (SCP6G78-GL-##E)
Calibration constants for External Calibration Option, 2 wire address A2h
Address
56-59
#Bytes
4
60-63
4
64-67
4
68-71
4
72-75
4
76-77
2
78-79
2
80-81
2
82-83
2
84-85
2
86-87
2
88-89
2
90-91
2
92-94
95
3
1
Name
RP4
Description
Single precision floating-point calibration data for
received power. Byte 56 is MSB. Byte 59 is LSB.
Single precision floating-point calibration data for
RP3
received power. Byte 60 is MSB. Byte 63 is LSB.
Single precision floating-point calibration data for
RP2
received power. Byte 64 is MSB. Byte 67 is LSB.
Single precision floating-point calibration data for
RP1
received power. Byte 68 is MSB. Byte 71 is LSB.
Single precision floating-point calibration data for
RP0
received power. Byte 72 is MSB. Byte 75 is LSB.
I SLOPE Unsigned fixed-point calibration data for laser bias
current. Byte 76 is MSB. Byte 77 is LSB.
IOFFSET 16-bit signed 2's complement calibration data for laser
bias current. Byte 78 is MSB. Byte 79 is LSB.
TPSLOPE Unsigned fixed-point calibration data for laser output
power. Byte 80 is MSB. Byte 81 is LSB.
TPOFFSET 16-bit signed 2's complement calibration data for laser
output power. Byte 82 is MSB. Byte 83 is LSB.
TSLOPE Unsigned fixed-point calibration data for transceiver
temperature. Byte 84 is MSB. Byte 85 is LSB.
TOFFSET 16-bit signed 2's complement calibration data for
transceiver temperature. Byte 86 is MSB. Byte 87 is LSB.
VSLOPE Unsigned fixed-point calibration data for supply voltage.
Byte 88 is MSB. Byte 89 is LSB.
VOFFSET 16-bit signed 2's complement calibration data for supply
voltage. Byte 90 is MSB. Byte 91 is LSB.
Reserved Reserved
Checksum Byte 95 contains the low order 8 bits of the sum at data
address bytes 0-94.
Transceiver temperature: Temperature, T, is given by
T = TSLOPE * T AD + TOFFSET
Where TAD is 16-bit signed 2's complement A/D value at bytes 96-97, TSLOPE is unsigned
fixed-point value at bytes 84-85 and TOFFSET is signed 2's complement value with LSB equal
to 1/256 deg-C at bytes 86-87. The result, T, is 16-bit signed 2's complement value with
LSB equal to 1/256 deg-C.The monitored output is the junction temperature of the diode inside the transceiver,
hence, there is some discrepancy between the output and transceiver case temperature of the point illustrated in
section 3 mechanical dimension.
Supply voltage: Voltage, V, is given by
V = VSLOPE * V AD + VOFFSET
Where VAD is 16-bit unsigned A/D value at bytes 98-99, VSLOPE is unsigned fixed-point
value at bytes 88-89 and VOFFSET is signed 2's complement value with LSB equal to 100 µV at
bytes 90-91. The result, V, is 16-bit unsigned value with LSB equal to 100 µV.
(SCP6G78-GL)
- 14 / 20 -
Specification : TS-S08D114A
November, 2008
Laser bias current: Current, I, is given by
I = ISLOPE * IAD + IOFFSET
Where IAD is 16-bit unsigned A/D value at bytes 100-101, ISLOPE is unsigned fixed-point
value at bytes 76-77 and IOFFSET is signed 2's complement value with LSB equal to 2 µA at
bytes 78-79. The result, I, is 16-bit unsigned value with LSB equal to 2 µA.
Laser output power: Power, TP, is given by
TP = TPSLOPE * TPAD + TPOFFSET
Where TPAD is 16-bit unsigned A/D value at bytes 102-103, TPSLOPE is unsigned fixed-point
value at bytes 80-81 and TPOFFSET is signed 2's complement value with LSB equal to 0.1 µW at
bytes 82-83. The result, TP, is 16-bit unsigned value with LSB equal to 0.1 µW.
Received power: Power, RP, is given by
RP = RP4 * RPAD4 + RP3 * RPAD3+ RP2 * RPAD2 + RP1 * RPAD + RP 0
Where RPAD is 16-bit unsigned A/D value at bytes 104-105 and RP4, RP3, RP2, RP1 and RP0
are single precision floating-point values at bytes 56-75. The result, RP, is 16-bit unsigned
value with LSB equal to 0.1 µW.
A/D Accuracy, 2 wire address A2h
Data Address
Param eter
Accuracy
96-97
Temperature +/-3 deg-C
98-99
100-101
102-103
104-105
(SCP6G78-GL)
Vcc
TX Bias
TX Power
RX Power
+/-3%
+/-10%
+/-3dB
+/-3dB
( -28 to -9dBm )
Units Display
Signed 2's
complement
integer deg-C
x100µVolt
x2µA
x0.1µW
x0.1µW
- 15 / 20 -
Note
Junction temperature
of monitoring IC.
Specified by nominal value
-2 to +3dBm
At specified transmitter
wavelength ( Section 7-1 )
Specification : TS-S08D114A
November, 2008
12. A/D Values and Status (SCP6G78-GL-##E)
Converted analog values, 2wire address A2h
Byte
96
Bit
All
97
98
99
All
All
All
100
101
102
103
104
105
106-109
All
All
All
All
All
All
All
Name
Description
Temperature MSB Signed 2's complement integer temperature(-40 to
+125C) Based on internal temperature measurement
Temperature LSB Fractional part of temperature(count/256)
Vcc MSB
Internally measured supply voltage in transeciver.
Vcc LSB
Actual voltage is full 16 bit value *100uVolt.(Yields
range of 0-6.55V)
TX Bias MSB
Measured Laser Bias Current in mA. Bias current is full
TX Bias LSB
16 bit value *2μA.(Full range of 0-131mA)
TX Power MSB
Measured TX output power in mW . TX power is full 16
TX Power LSB
bit value*0.1μW .(Full range of -40 to +8.2dBm)
RX Power MSB
Measured RX input power in mW . RX power is full 16
RX Power LSB
bit value*0.1μW .(Full range of -40 to +8.2dBm)
Reserved
Optional Status Bits, 2wire address A2h
Byte
110
Bit Name
0 Data_Ready_Bar
(SCP6G78-GL)
Description
Indicates transceiver has achieved power up and data is
ready. Bit remains high until data is ready to be read at
which time the device sets the bit low.
- 16 / 20 -
Specification : TS-S08D114A
November, 2008
13. Alarm and Warning Flags (SCP6G78-GL-##E)
Alarm and Warning Flags, 2wire address A2h
Byte Bit Name
112 7 Temp High Alarm
112 6 Temp Low Alarm
112 5 Vcc High Alarm
112 4 Vcc Low Alarm
112 3 TX Bias High Alarm
112 2 TX Bias Low Alarm
112 1 TX Power High Alarm
112 0 TX Power Low Alarm
113 7 RX Power High Alarm
113 6 RX Power Low Alarm
113 5-0 Reserved
114 All Reserved
115 All Reserved
116 7 Temp High Warning
116 6 Temp Low Warning
116 5 Vcc High Warning
116 4 Vcc Low Warning
116 3 TX Bias High Warning
116 2 TX Bias Low Warning
116 1 TX Power High Warning
116 0 TX Power Low Warning
117 7 RX Power High Warning
117 6 RX Power Low Warning
117 5-0 Reserved
118 All Reserved
119 All Reserved
(SCP6G78-GL)
Description
Set when internal temperature exceeds high alarm level.
Set when internal temperature is below low alarm level.
Set when internal supply voltage exceeds high alarm level.
Set when internal supply voltage is below low alarm level.
Set when TX Bias current exceeds high alarm level.
Set when TX Bias current is below low alarm level.
Set when TX output power exceeds high alarm level.
Set when TX output power is below low alarm level.
Set when Received Power exceeds high alarm level.
Set when Received Power is below low alarm level.
Set when internal temperature exceeds high warning level.
Set when internal temperature is below low warning level.
Set when internal supply voltage exceeds high warning level.
Set when internal supply voltage is below low warning level.
Set when TX Bias current exceeds high warning level.
Set when TX Bias current is below low warning level.
Set when TX output power exceeds high warning level.
Set when TX output power is below low warning level.
Set when Received Power exceeds high warning level.
Set when Received Power is below low warning level.
- 17 / 20 -
Specification : TS-S08D114A
November, 2008
14. Recommended Interface Circuit
T R A N S M IT D A T A
TD+
10 0Ω
T D-
V cc
V cc T
4 . 7 k to
4 . 7 kΩ
1 0 kΩ
T X F ault
T X D is a b le
R E C EIVE D A TA
RD+
SFP
M O D ULE
10 0Ω
R D-
HOST
BOARD
V cc
* Temperature
* Supply Voltage
* Tx Bias Current
* Tx Output Power
* Rx Received Power
4 . 7 k to
10 kΩ
LO S
D i a g n o s ti c
M o n i to r
V cc
4 . 7 k to
10 kΩ
M O D - D E F (0)
E EP R O M
M O D - D E F (1)
M O D - D E F (2)
5 0 Ω li n e
FG
Figure 13. Recommended Interface Circuit
1 uH
V c cT
0.1 uF
1 uH
3.3 V
V c cR
0.1 uF
10 uF
0.1 uF
10 uF
V ee T
V ee R
S F P M o d u le
VeeT and VeeR are not internally connected to each other.
VccT and VccR are not internally connected to each other.
Module cover is not internally connected to VeeT and VeeR.
Figure 14. Recommended Supply Filtering Network
(SCP6G78-GL)
- 18 / 20 -
Specification : TS-S08D114A
November, 2008
15. Laser Safety
This product uses a semiconductor laser system and is a laser class 1
product acceptable FDA, complies with 21CFR 1040. 10 and 1040.11. Also
this product is a laser class 1 product acceptable IEC 60825-1:2001.
Class 1 Laser Product
Caution
If this product is used under conditions not recommended in the specification or this product is used with unauthorized revision,
classfication for laser product safety standard is invalid. Classify the product again at your responsibility and take appropriate
actions.
16. Other Precaution
Under such a strong vibration environment as in automobile, the performance and reliability are not guaranteed.
The governmental approval is required to export this product to other countries. To dispose of these components,
the appropriate procedure should be taken to prevent illegal exportation.
This module must be handled, used and disposed of according to your company's safe working practice.
Warning
Operating transceiver products can have an outer package temperature exceeding 70
degC. To reduce the risk of injury from burns, do not touch the transceiver module under
any circumstances while it is operational. When installing or uninstalling products that
have been operating, handle with extreme care.
Warning
Do not put this product or components of this product into your mouth. This product contains material harmful to health.
Caution .
Dispose this product or equipment including this product properly as an industrial waste according to the regulations.
17. Ordering Information
SCP6G78 - GL - a b E ( LC Duplex Receptacle, Metallized )
Diagnostic Monitoring with External Calibration
Operating Case Temperature
N :Tc = -5 to 70°C
M :Tc = -5 to 85°C
W :Tc = -40 to 85°C
Actuator and Tx Fault Type
(SCP6G78-GL)
Type
Actuator
Tx Fault
Tx Shutdow n on Tx Fault
Part Number on Label
A
Bail
Latched
No
SCP6G78-GL-A b E
B
Bail
Not Latched
No
SCP6G78-GL-B b E
C
Bail
Latched
Yes
SCP6G78-GL-C b E
- 19 / 20 -
Specification : TS-S08D114A
November, 2008
18. For More Information
U.S.A.
ExceLight Communications
4021 Stirrup Creek Drive, Suite 200 Durham, NC 27703 USA
Tel. +1-919-361-1600 / Fax. +1-919-361-1619
E-mail: info@excelight.com
http://www.excelight.com
Europe
Sumitomo Electric Europe Ltd.
220 Centennial Park, Elstree, Herts, WD6 3SL UK
Tel. +44-208-953-8681 / Fax. +44-208-207-5950
E-mail: photonics@sumielectric.com
http://www.sumielectric.com
Japan
Sumitomo Electric Industries, Ltd.
1 Taya-cho, Sakae-ku, Yokohama, 244-8588 Japan
Tel. +81-45-853-7154 / Fax. +81-45-851-1932
E-mail: product-info@ppd.sei.co.jp
http://www.sei.co.jp/Electro-optic/index_e.html
(SCP6G78-GL)
- 20 / 20 -
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