Date Code 20010518 “Job Done” Examples - (Example 1) 4-13
SEL-2020 Instruction Manual
VERIFY AND TEST ALL COMMUNICATION PATHS
The remainder of this example verifies proper communication with the SEL-251 Relays attached
to each port of the SEL-2020.
1. Issue the STATUS command to check that IRIG-B signal is present and devices are
connected as expected. Your screen should look similar to the following:
*>>STATUS<ENTER>
STATUS<ENTER>STATUS<ENTER>
STATUS<ENTER>
COMMUNICATIONS PROCESSOR - S/N 95012004 Date: 03/06/95 Time: 13:46:43
FID=SEL-2020-R100-V0-D950324
SELF-TESTS
RAM ROM EEPROM FLASH P.S. SET BATTERY
512 kb OK OK 2048 kb OK OK OK
IRIG-B Input: Present
I/O Board: Installed
Modem: Installed
Port Status Success Rate SET M Database Delays
1 Active None
2 Active None
3 Active None
4 Active None
5 Active None
6 Active None
7 Active None
8 Active None
9 Active None
10 Inactive None
11 Inactive None
12 Inactive None
13 Inactive None
14 Inactive None
15 Inactive None
16 InActive None
F Active 100% None
*>>
2. Initiate transparent communications to the relay on Port 1 by typing PORT 1<ENTER>.
Press <ENTER> a second time to receive the relay system prompt. You will see the
following screen:
*>>PORT 1<ENTER>
PORT 1<ENTER>PORT 1<ENTER>
PORT 1<ENTER>
Transparent Communications to Port 1 established
<ENTER>
<ENTER><ENTER>
<ENTER>
=
You should communicate with the relay attached to Port 1 as though your terminal were
directly connected to the relay. The relay should be at Access Level 0, as indicated by the
“=” prompt. If you do not see the “Transparent Communication Established” message or the
relay prompt, check the cable connection and the relay status. See the Troubleshooting
subsection of Section 10: Maintenance for more detailed information.
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