Juniper MX2020 Hardware Manual page 186

Table 53: SFP+ Network Port Connector Pinout Information
Pin Signal
1 VeeT
2 TX_Fault
3 TX_Disable
4 SDA
5 SCL-
6 MOD_ABS
7 RS0
8 RX_LOS
9 RS1
10 VeeR
11 VeeR
12 RD-
13 RD+
14 VeeR
15 VccR
16 VccT
17 VeeT
18 TD+
19 TD-
20 VeeT
Description
Module transmitter ground
Module transmitter fault
Transmitter disabled
2-wire serial interface data line
2-wire serial interface clock
Module absent
Rate select 0, optionally controls SFP+ module receiver
Receiver loss of signal indication
Rate select 1, optionally controls SFP+ transmitter
Module receiver ground
Module receiver ground
Receiver inverted data output
Receiver noninverted data output
Module receiver ground
Module receiver 3.3 V supply
Module transmitter 3.3 V supply
Module transmitter ground
Transmitter noninverted data input
Transmitter inverted data input
Module transmitter ground
164