SEL-3031 Instruction Manual Date Code 20181001
Installation
Communications
2.18
Table 2.11 shows the pin function of the serial ports.
Cleaning
Use care when cleaning the SEL-3031. Perform the following steps:
Step 1. Use a mild soap or detergent solution and a damp cloth to clean the
chassis.
Step 2. Be careful cleaning the front and rear panels because a permanent
plastic sheet covers each panel.
Do not use abrasive materials, polishing compounds, or harsh chemical solvents (such
as xylene or acetone) on any surface.
Table 2.11 SEL-3031 Port Description
Pin
Port 1
EIA-232
Port 2
EIA-232
Port 3
EIA-232
Port 1
EIA-485
1 +5 Vdc +5 Vdc +5 Vdc TX+
2 RXD RXD RXD TX-
3 TXD TXD TXD N/C
4 N/C IRIG+ N/C N/C
5 GND GND GND GND
6 N/C IRIG– N/C N/C
7 RTS RTS SYNC IN RX+
8 CTS CTS SYNC OUT RX–
9 N/C N/C N/C N/C
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