Juniper BT8A78CH1, Hardware Overview And Installation Manual

Page: 63 / 228

Table 26: 1-Slot Chassis Front Cooling Module (BT8A78FAN5) Specifications (continued)
Specification Item
Typical: 65 W
Maximum: 72 W
Power Consumption (40°C ambient)
NOTE: Before using for planning or implementation
purposes, contact Juniper Networks Support to
confirm the power consumption values.
Maximum: 110 CFM Air Flow
Fail: Red
Active: Green
LEDs
Critical: Red
Major: Red
Minor: Amber
Chassis Status LEDs
Link (right): Green when the link is up on the corresponding CMM
management port.
Activity (left): Not used. This LED is green when the Link LED is lit.
NOTE: The Link LED reflects the status of the link on the corresponding
port of the CMM. If you connect a device to a port on the FAN5 module
but leave the corresponding port on the CMM unconnnected, the Link
LED will not light up. Conversely, if you connect a device directly to a CMM
port, the corresponding Link LED on the FAN5 module might light up even
if no cable is connected to the FAN5 module.
Port LEDs
BTI7801 FAN5 Management Ports and the ESL Module
The FAN5 module can provide front access to management and craft ports. The FAN5
module works with the optional Ethernet and Serial Link (ESL) module to provide
straight-through management and craft port connectivity between the front and the rear
of the chassis. Ethernet and/or serial cables are run externally from the CMM at the rear
of the chassis to the ESL module, which in turn connects to the FAN5 module directly
though the midplane, thereby extending management and craft port connectivity from
the CMM through to the front of the chassis.
The ESL module is installed from the rear of the chassis, directly behind the FAN5 module.
The ESL module has a management Ethernet and craft serial/Ethernet port for connecting
to the CMM, as well as a grille for fan exhaust.
63 Copyright © 2019, Juniper Networks, Inc.
Chapter 2: BTI7800 Series Chassis