100G ZR QSFP28 Digital Coherent Optics Transceiver

PRODUCT FEATURES

• Digital Coherent Optics module, hot-pluggable QSFP28 form factor
• IEEE 100G Ethernet (CAUI-4) or ITU-T 100G OTN (OTL4.4) compliant host interface
• 100G optical coherent interface with DPDQPSK modulation and Staircase FEC per IEEE Std. 802.3-2022 100GBASE-ZR or ITU-T G.709.2
• Transmission reach:

    Up to 80km unamplified (loss limited) o Up to 120km amplified (dispersion limited, optionally extendable to 300km)

    Full C-band tunable, 50GHz or 100GHz grid with optional FlextuneTM automatic wavelength tuning

• Case temperature range 0°C to 70°C (C-temp) or -40°C to 85°C (I-temp)
• Power dissipation < 5.5W (C-temp) or < 6.0W  (I-temp)
• Remote digital diagnostics monitoring 

APPLICATIONS

• Access and aggregation networks
• Cable TV networks
• Wireless front-haul & mid-haul

PRODUCT SELECTION

Pin Definitions

Figure 1 QSFP28-compliant 38-pin connector (per SFF-8679)

Notes:

1. GND is the symbol for signal and supply (power) common for the module. All are common within the module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.

2. VccRx, Vcc1 and VccTx are applied concurrently and may be internally connected within the module in any combination. 

3. Plug Sequence specifies the mating sequence of the host connector and module. The sequence is 1, 2, 3 (see Figure 1 for pad locations).

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. 

Caution: Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Environmental Specifications

Note：

1. No optical performance specifications need to be met during start-up at cold, but module will power up and respond to commands.

Data Path

Figure 2 High-level block diagram of RQ-100GDCO-x3PLt module data path

Host Interface Modes

Notes:

1. Maximum delay variation for a pair of RQ-100GDCO-S3PLt modules over time, including cold restarts, when delay variation is filtered with a low-pass filter with 0.1Hz bandwidth. This is to support transparent transport of IEEE 1588-2019 Precision Time Protocol messages enabling Class C operation.

Electrical Characteristics

Notes:

1. The module will stay within its advertised power class for all supply voltages.

2. For 1000kHz clock rate, refer to Figure 6-4 in [2]

Optical Characteristics

Notes:

1. Rx signal input power range over which performance can be guaranteed with <1dB OSNR penalty relative to Rx OSNR tolerance limit 

Mechanical Specifications

The RQ-100GDCO-x3PLt QSFP28 mechanical specifications are compliant to the applicable standards [3-7]. The pull tab color is White.