Ptx1000 Network Cable And Transceiver Planning; Determining Transceiver Support For The Ptx1000 - Juniper PTX1000 Hardware Manual

PTX1000 Network Cable and Transceiver Planning

IN THIS SECTION

Determining Transceiver Support for the PTX1000 | 58

Cable and Connector Specifications for MX and PTX Series Devices | 59
Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 65
Calculating Power Budget and Power Margin for Fiber-Optic Cables | 66
Determining Transceiver Support for the PTX1000
The PTX1000 has 72 network ports. Each of the 72 network ports on the port panel supports quad small
form-factor pluggable plus (QSFP+) transceivers, and is configured as a channelized 4 x 10-Gigabit Ethernet
interface by default (for a maximum of 288 10-Gigabit Ethernet ports). You can configure each of the 72
ports as a 40-Gigabit Ethernet interface. You can also configure 24 of the 72 network ports as 100-Gigabit
Ethernet interfaces—these ports support QSFP28 transceivers for 100-Gbps speeds. See
Panel" on page 23 for more information about the network ports.
NOTE: By default, the Junos OS software running on the PTX1000 automatically enables or
disables RS-FEC for 100-Gigabit Ethernet transceivers based on the type of transceiver installed.
You can explicitly enable or disable RS-FEC for a port by using the edit interfaces interface-name
gigether-options fec statement. See fec for more information.
The network ports on the PTX1000 support QSFP+ and QSFP28 transceivers, direct-attach copper (DAC)
cables, and active optical cables (AOCs). The PTX1000 also supports using small form-factor pluggable
(SFP) transceivers to connect the SFP management (MGMT) port. SFP transceivers are not supported for
use on the network ports. The following SFP transceivers are supported in the SFP management port only:
SFP-1GE-LX
SFP-1GE-SX
SFP-1GE-T
You can find information about the pluggable transceivers supported on your Juniper Networks device
by using the Hardware Compatibility Tool. In addition to transceiver and connector type, the optical and
cable characteristics—where applicable—are documented for each transceiver. The Hardware Compatibility
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"PTX1000 Port