Category	Specification
General Specifications
Model	QSP-100COTU
Product Type	100G QSFP28 DCO Coherent Transceiver
Form Factor	QSFP28 (Digital Coherent Optics)
Application	DCI, Metro DWDM, Long-haul, Backhaul Networks
Connector	Duplex LC
Fiber Type	OS2 Single-Mode Fiber
Data Rate	Up to 128 Gb/s (Line Rate)
Client Interface	100GE / OTU4
Modulation	DP-QPSK / DQPSK
Wavelength	Full C-Band Tunable (ITU-T G.694.1)
Transmission Distance	Up to 120 km (Unamplified)
Power Supply	+3.3 V
Power Consumption	13 W (ST) / 15 W (IT)
Operating Temperature	ST: −5°C to +70°C / IT: −40°C to +85°C
Housing	Metal enclosure (Low EMI)
Hot Plug	Supported
Compliance	RoHS-6
Laser Safety	Class I (FDA/CDRH, IEC 60825)

Parameter	Min	Max	Unit
Output Power	-8	-5	dBm
SMSR	40	—	dB
Tx Power Accuracy	-2	+2	dB
Tx Power Imbalance	—	2	dB
Tx XY Skew	—	3	ps
Tx IQ Imbalance	—	1	dB
Tx Quadrature Error	-5	+5	°
Tx IQ Skew	—	2	ps
EVM Mask Ratio	—	18	%
In-band OSNR	40	—	dB/0.1nm
Tx Reflectance	—	-22	dB

Parameter	Min	Max	Unit
Input Power Range	-40	+5	dBm
Sensitivity	—	-32	dBm
Chromatic Dispersion	—	10	ns/nm
PMD Tolerance	—	16	ps
PDL Penalty	—	1	dB
SOP Tracking	—	100	kHz
Rx Reflectance	—	-22	dB
LOS Assert	-40	—	dBm
LOS De-assert	—	-32	dBm
LOS Hysteresis	—	5	dB
OSNR (Metro)	16.5	—	dB/0.1nm
OSNR (Long-haul)	15	—	dB/0.1nm