Juniper EX2500-RMK-4POST Manuale Utente
EX2500 Ethernet Switch Hardware Guide
6
EX2500 Ethernet Switch Components
10/100/1000Base-T Management (MGMT) Ports
Two 10/100/1000Base-T ports (RJ-45) are located on the front panel. These
management ports support in-line management.
management ports support in-line management.
Table 5 describes the RJ-45 connector pin assignments.
Console (CON) Port
The RS-232 (mini-USB) serial console port is located on the front panel. An external
cable is required to convert the connector to a D9 connector. Table 6 describes the
pinouts for the mini-USB port.
cable is required to convert the connector to a D9 connector. Table 6 describes the
pinouts for the mini-USB port.
Table 7 describes the wiring of the console cable.
EX-SFP-10GE-DAC-1M
1-m Direct Access (TwinAx) Cable
EX-SFP-10GE-DAC-3M
3-m Direct Access (TwinAx) Cable
EX-SFP-10GE-DAC-5M
5-m Direct Access (TwinAx) Cable
EX-SFP-10GE-DAC-7M
7-m Direct Access (TwinAx) Cable
Table 5: RJ-45 Port Pin Assignments
Pin Number
Signal
Description
Pin 1
BI DA+
Bi-directional data pair A positive
Pin 2
BI DA-
Bi-directional data pair A negative
Pin 3
BI DB+
Bi-directional data pair B positive
Pin 4
BI DC+
Bi-directional data pair C positive
Pin 5
BI DC-
Bi-directional data pair C negative
Pin 6
BI DB-
Bi-directional data pair B negative
Pin 7
BI DD+
Bi-directional data pair D positive
Pin 8
BI DD-
Bi-directional data pair D negative
Table 6: Console Port Pin Assignments
Pin Number
Function
Pin 1
No connect
Pin 2
RS232_SIN
Pin 3
RS232_SOUT
Pin 4
No connect
Pin 5
Ground
Table 7: Console Cable Pin Assignments (1 of 2)
D9 Pin Number
Wire
Mini-USB Pin Number
Pin 2
Black
Pin 3
Pin 3
White
Pin 2
Pin 5
Green
Pin 5
Table 4: Approved EX2500 SFP+ Transceivers and DACs (2 of 2)
Model Number
Description