Notes:

1)TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

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 4.7 – 10 K Ω resistor. Its states are:

Low (0 – 0.8V):

Transmitter on

(>0.8, < 2.0V):

Undefined

High (2.0 – 3.465V):

Transmitter Disabled

Open:

Transmitter Disabled

3)Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩresistor on the host board. The pull-up voltage shall be VccT or VccR (see Section IV for further details). Mod-Def 0 is grounded by the module to indicate 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/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

5)VeeR and VeeT may be internally connected within the SFP module.

6)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. The voltage swing on these lines will be between 370 and 2000 mV differential (185 – 1000 mV single ended) when properly terminated.

7)VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30mA greater than the steady state value. VccR and VccT may be internally connected within the SFP transceiver module.

8)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. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200 mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 – 600 mV single-ended) be used for best EMI performance.

6

Jun., 2007

 

Rev. 0F

DELTA ELECTRONICS, INC.

www.deltaww.com

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Delta Electronics LCP-155 CWDM manual Delta ELECTRONICS, INC
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LCP-155 CWDM specifications

Delta Electronics has established itself as a prominent player in the telecommunications field, particularly with its innovative LCP-155 CWDM (Coarse Wavelength Division Multiplexing) solution. This device stands out for its ability to enhance the capacity and efficiency of optical networks, allowing multiple channels to be transmitted over a single optical fiber. The LCP-155 CWDM is an essential piece of equipment for service providers looking to optimize their existing infrastructure.

One of the key features of the LCP-155 CWDM is its scalability. With the ability to support up to 16 wavelengths on a single fiber strand, this solution enables network operators to increase bandwidth without extensive additional investments in physical infrastructure. This scalability is particularly important in scenarios where demand is rapidly growing, allowing operators to effectively accommodate future needs without significant disruptions.

The device employs advanced technologies such as high-performance optical filters and integrated monitoring functions. These features ensure that signal integrity is maintained, even over long distances. The built-in monitoring capabilities provide real-time insights into system performance, allowing operators to proactively manage network health and troubleshoot issues before they escalate.

Another noteworthy characteristic of the LCP-155 CWDM is its compact form factor. The design is optimized for efficient space usage, making it suitable for deployment in various environments, including central offices and remote locations. This compact nature does not compromise performance; the device delivers low insertion loss and high channel isolation, which are critical for maintaining signal quality in densely populated wavelength environments.

Delta Electronics has also prioritized energy efficiency in the LCP-155 CWDM. With the increasing focus on sustainability, this solution is designed to consume less power without sacrificing performance. This efficiency not only reduces operational costs but also aligns with the global movement towards greener technology.

In summary, Delta Electronics LCP-155 CWDM combines scalability, advanced optical technologies, compact design, and energy efficiency to meet the evolving needs of today’s telecommunications landscape. Suitable for fiber-optic network operators aiming to enhance capacity and manage growing data traffic, the LCP-155 CWDM stands out as a versatile and reliable solution. As the demand for high-speed connectivity continues to soar, innovations like the LCP-155 CWDM will play a crucial role in shaping the future of optical networks.
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