Date Code 20210715
SEL-2890 Instruction Manual
Section 2
Installation
Introduction
This section includes information and procedures for SEL-2890 installation. Effective
installation includes the following tasks:
➤
Installing the SEL-2890
➤
Performing SEL-2890 initial checkout
Installation
Perform the following steps to begin communicating with the SEL-2890.
Step 1.
The serial port powers the SEL-2890.
shows the EIA-232
serial port pinout. P5 Vdc between Pin 1 and Pin 5 on the
serial connector with Pin 1 being the positive terminal.
The transceiver requires a range of 4.5 to 5.5 Vdc and less than
250 mA of current. Power is normally provided by the SEL relays
and communications processors.
Table 2.1
SEL-2890 EIA-232 Serial Port Pinout
Pin
Description
1
+5 Vdc
2
Transmit
3
Receive
4
No Connection
5
Ground
6
No Connection
7
CTS
8
RTS
9
No Connection
Содержание SEL-2890
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