7.7
Date Code 20170814
Instruction Manual
SEL-700G Relay
Communications
Communications Interfaces
Option 3: Port 2 (Fiber-Optic Serial Port)
You can use Fiber-Optic Serial Port 2 to bring IRIG-B Input to the relay as
shown in Figure 7.7 and Figure 7.8.
If you use Port 2 for IRIG-B input, you cannot use
B01
–
B02
input or Port 3 input.
Set Global setting IRIG TIME SOURCE to TIME_SRC := IRIG2.
Figure 7.7
IRIG-B Input VIA Fiber-Optic EIA-232 Port 2 (SEL-2030/2032
Time Source)
If you use Port 2 for the IRIG-B input, you cannot use a
B01
–
B02
input or Port 3 input.
Set Global setting IRIG TIME SOURCE to TIME_SRC := IRIG2.
Figure 7.8
IRIG-B Input VIA Fiber-Optic EIA-232 Port 2 (SEL-2401/2404/
2407 Time Source)
+5 Vdc Power Supply
Serial port power can provide as much as 0.25 A total from all of the +5 Vdc
pins. Some SEL communications devices require the +5 Vdc power supply.
This +5 Vdc is available on Pin 1 only.
Connect Your
PC to the Relay
The front port of the SEL-700G is a standard female 9-pin connector with pin
numbering shown in Figure 7.9. The pinout assignments for this port are
shown in Table 7.2. You can connect to a standard 9-pin computer port with
SEL Cable C234A; wiring for this cable is shown in Figure 7.10. SEL Cable
C234A and other cables are available from SEL. Use the SEL-5801 Cable
Selector Software to select an appropriate cable for another application. This
software is available for free download from the SEL website at selinc.com.
For best performance, SEL Cable C234A should be no more than 15 meters
(50 feet) long. For long-distance communications and for electrical isolation
of communications ports, use the SEL family of fiber-optic transceivers.
Contact SEL for more details on these devices.
SEL-2812MT
SEL-2030
SEL-2032
EIA-232 Port
with IRIG
DB9
Use Fiber-Optic Cables
SEL C805 or SEL C807
Port 2
Set switch to 232 for IRIG-B
from SEL-2030 or SEL-2032
ST Connectors
SEL-700G
SEL-2812MT
SEL-2401
or
SEL-2407
SEL-2404
IED
DB9
Mono-Plug
Jack
Use Fiber-Optic Cables
SEL C805 or SEL C807
SEL Cable
C654
Port 2
Set switch to “J1” for IRIG input
from SEL-2401, etc.
ST
ST
BNC
SEL-700G
Summary of Contents for SEL-700G Series
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