Standard LCP-2488xxxx
Small Form Factor Pluggable Transceiver for
SONET OC-48/SDH STM-16
FEATURES
Compliant with SFP Transceiver MSA
specification
LCP-2488B4HS Compliant Intra-office SONET
OC-48 / SDH STM-16 (I-16)
LCP-2488B4JS Compliant short-haul SONET
OC-48 / SDH STM-16 (S-16.1)
Compliant with Industry Standard RFT
Electrical Connector and Cage
Single + 3.3V Power Supply and TTL Logic
Interface
EEPROM with Serial ID Functionality
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Duplex LC Connector interface
LCP-2488A4ES(M) (MMF 300m)
LCP-2488B4HS(M) (SMF 2km)
LCP-2488B4JS (SMF 15km)
Description
The LCP-2488xxxx series are hot pluggable
3.3V Small-Form-Factor transceiver module
designed
expressly
for
high-speed
communication applications that require rates of
up to 2.488Gbit/sec. It is compliant with the
SONET OC-48 and SDH STM-16 standards, as
well as the SFP Multisource Agreement (MSA).
The LCP-2488xxxx transceivers provide with the
LC receptacle that is compatible with the
industry standard LC connector. The transceiver
is also compatible with industry standard RFT
connector and cage.
The post-amplifier of the LCP-2488xxxx also
includes a LOS (Loss Of Signal) circuit that
provides a TTL logic-high output when an
unusable optical signal level is detected.
The LCP-2488xxxx transceiver is a Class 1 eye
safety product. The optical power levels, under
normal operation, are at eye safe level.
Applications
SONET/SDH switch infrastructure
xDSL applications
Switch to Switch interface
Switched backplane applications
File server interface
Performance
LCP-2488A4ES Data Link up to 300m in 50/125
Multi Mode Fiber
LCP-2488B4HS Data Link up to 2km in 9/125
Signal Mode Fiber
LCP-2488B4JS Data Link up to 15km in 9/125
Signal Mode Fiber
1
DELTA ELECTRONICS, INC.
Jan. 2004
Rev. 0A
www.deltaww.com
Standard LCP-2488xxxx
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage
Symbol
Ts
V
CC
Min.
-40
0
Typ.
Max.
85
5
Unit
ºC
V
Note
Recommended Operating Conditions
Parameter
Ambient Operating Temperature
Supply Voltage
Symbol
T
A
V
CC
Min.
0
3.135
Typ.
Max.
70
3.465
Unit
ºC
V
Note
Electrical Characteristics
(T
A
=0 ºC to 70 ºC, V
CC
=3.135V to 3.465V)
Parameter
Total Supply Current
LCP-2488Axxx
LCP-2488Bxxx
Transmitter
Transmitter Differential Input Voltage
Transmitter Disable Input-High
Transmitter Disable Input-Low
Transmitter Fault Output-High
Transmitter Fault Output-Low
Receiver
Receiver Differential Output Voltage
LOS Output Voltage-High
LOS Output Voltage-Low
Output Data Rise/Fall Time
Symbol
I
CCT
V
DT
V
DISH
V
DISL
V
TXFH
V
TXFL
V
DR
V
LOSH
V
LOSL
t
r
/t
f
0.5
2
0
2
0
0.37
2
0
0.7
Min.
Typ.
Max.
220
250
2.4
V
CC
+0.3
0.8
V
CC
+0.3
0.8
2
V
CC
+0.3
0.8
200
Unit
mA
V
V
V
V
V
V
V
V
psec
1
2
2
3
2
2
4
Note
Notes:
1. Internally AC coupled and terminated to 100 Ohm differential load.
2. Pull up to V
CC
with a 4.7K – 10KΩ resistor on host Board
3. Internally AC coupled, but requires a 100 Ohm differential termination at or internal to Serializer/
Deserializer.
4. These are 20%~80% values
2
DELTA ELECTRONICS, INC.
Jan. 2004
Rev. 0A
www.deltaww.com
Standard LCP-2488xxxx
Optical Characteristics (LCP-2488A4ES)
(T
A
=0 ºC to 70 ºC, V
CC
=3.135V to 3.465V, Data Rate=2.488Gb/sec, PRBS=2
23
-1 NRZ, 50/125µm MMF)
Parameter
Transmitter
Output Optical Power (Avg.)
Optical Extinction Ratio
Center Wavelength
Spectral Width (RMS)
Optical Rise/Fall Time
Relative Intensity Noise
Output Eye
Receiver
Sensitivity (Avg.)
Input Optical Wavelength
LOS-De-asserted (Avg.)
LOS-Asserted (Avg.)
LOS-Hysteresis
Overload
Notes:
1. These are 20%~80% values
2. The sensitivity is provided at a BER of 1×10
-10
or better with an input signal consisting of 2.488Gb/s,
2
23
-1 PRBS.
Symbol
Min.
Typ.
Max.
Unit
Note
P
O
-9.5
-4
dBm
ER
8.2
dB
λ
C
830
850
860
nm
σ
0.85
nm
150/200
psec
t
r
/ t
f
RIN
-117
dB/Hz
Compliant with ITU-T recommendation G.957
P
IN
λ
P
A
P
D
P
A
-P
D
P
O
-17
850
-17
-30
0.5
-4
dBm
nm
dBm
dBm
dB
dBm
1
2
Mask of the eye diagram for the optical transmit signal
3
DELTA ELECTRONICS, INC.
Jan. 2004
Rev. 0A
www.deltaww.com
Standard LCP-2488xxxx
Optical Characteristics (LCP-2488B4xx)
(T
A
=0 ºC to 70 ºC, V
CC
=3.135V to 3.465V, Data Rate=2.488Gb/sec, PRBS=2
23
-1 NRZ, 9/125µm SMF)
Parameter
Transmitter
Output Optical Power (Avg.)
LCP-2488B4HS
LCP-2488B4JS
Optical Extinction Ratio
Center Wavelength
Spectral Width
LCP-2488B4HS (RMS)
LCP-2488B4JS (-20dB)
Optical Rise/Fall Time
Relative Intensity Noise
Output Eye
Receiver
Sensitivity (Avg.)
Input Optical Wavelength
LOS-De-asserted (Avg.)
LOS-Asserted (Avg.)
LOS-Hysteresis
Overload
LCP-2488B4HS
LCP-2488B4JS
Symbol
Min.
Typ.
Max.
Unit
Note
P
O
λ
C
σ
-10
-5
8.2
1266
-3
0
1310
1360
dBm
dB
nm
4
nm
1
150/200
psec
t
r
/f
f
RIN
-120
dB/Hz
Compliant with ITU-T recommendation G.957
P
IN
λ
P
A
P
D
P
A
-P
D
P
O
-18
1310
-18
-30
0.5
-3
0
dBm
nm
dBm
dBm
dB
dBm
1
1
2
2
Notes:
1. These are unfiltered 20%~80% values
2. The sensitivity is provided at a BER of 1×10
2
23
-1 PRBS and ER=9dB.
-10
or better with an input signal consisting of 2.488Gb/s,
Mask of the eye diagram for the optical transmit signal
4
DELTA ELECTRONICS, INC.
Jan. 2004
Rev. 0A
www.deltaww.com
Standard LCP-2488xxxx
SFP Transceiver Electrical Pad Layout
Pin Function Definitions
Pin Num.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Name
VeeT
TX Fault
TX Disable
MOD-DEF2
MOD-DEF1
MOD-DEF0
Rate Select
LOS
VeeR
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Function
Transmitter Ground
Transmitter Fault Indication
Transmitter Disable
Module Definition 2
Module Definition 1
Module Definition 0
Not Connect
Loss of Signal
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Received Data Out
Received Data Out
Receiver Ground
Receiver Power
Transmitter Power
Transmitter Ground
Transmit Data In
Inv. Transmit Data In
Transmitter Ground
Plug Seq.
Notes
1
3
Note 1
Note 2
3
Module disables on high or open
3
Note 3, 2 wire serial ID interface
3
Note 3, 2 wire serial ID interface
3
Note 3, Grounded in Module
3
Function not available
3
Note 4
1
Note 5
1
Note 5
1
Note 5
3
Note 6
3
Note 7
1
Note 5
2
3.3 ± 5%, Note 7
2
3.3 ± 5%, Note 7
1
Note 5
3
Note 8
3
Note 8
1
Note 5
Plug Seq.: Pin engagement sequence during hot plugging.
5
DELTA ELECTRONICS, INC.
Jan. 2004
Rev. 0A
www.deltaww.com
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