CHAPTER 13
Management Cable and Transceiver
Specifications and Pinouts
•
Routing Engine Interface Cable and Wire Specifications for the M120 Router on page 105
•
RJ-45 Connector Pinouts for the M120 Routing Engine ETHERNET Port on page 106
•
RJ-45 Connector Pinouts for the Routing Engine AUX and CONSOLE Ports on page 106
•
RJ-45 Connector Pinouts for the External Clock Ports on page 107
Routing Engine Interface Cable and Wire Specifications for the M120 Router
For management and service operations, you connect the Routing Engine to an external
console or management network. (For more information, see “M120 Routing Engine
Description” on page 22.)
Table 59 on page 105 lists the specifications for the cables that connect to management
ports and the wires that connect to the alarm relay contacts.
Table 59: Routing Engine Interface Cable and Wire Specifications
Router
Receptacle
Maximum
LengthCable/Wire SuppliedCable SpecificationPort
DB-9 male6 ft (1.83 m)One 6-ft (1.83-m) length
with DB-9/DB-9
connectors
RS-232 (EIA-232) serial cableRouting Engine console
or auxiliary interface
RJ-45
autosensing
328 ft (100 m)One 15-ft (4.57-m) length
with RJ-45/RJ-45
connectors
Category 5 cable or equivalent
suitable for 100Base-T operation
Routing Engine
Ethernet interface
—NoneNoWire with gauge between
24-AWG and 12-AWG (0.20 and
3.33 mm
2
)
Alarm relay contacts
Related
Documentation
Replacing Connections to M120 Routing Engine Interface Ports on page 206•
• M120 Routing Engine Description on page 22
105Copyright © 2018, Juniper Networks, Inc.
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