5-34 Installation
Date Code 20060731
SEL-300G Instruction Manual
Table 5.6: Password and Breaker Jumper Operation
Jumper Type
Jumper Position
Function
Password ON
(in place)
disable password protection
a
for serial ports and front
panel
OFF
(removed/not in place)
enable password protection
a
for serial ports and front
panel
Breaker ON
(in place)
enable serial port commands
OPEN
,
CLOSE
, and
PULSE
b
OFF
(removed/not in place)
disable serial port commands
OPEN
,
CLOSE
, and
PULSE
b
a
View or set the passwords with the
PASSWORD
command (see
Section 10: Serial Port Communications
and Commands
).
b
The
OPEN
,
CLOSE
, and
PULSE
commands are used primarily to assert output contacts for circuit
breaker control or testing purposes (see
Section 10: Serial Port Communications and Commands
).
Note that jumper JMP6 in Figure 5.26 has C and D jumper positions, too. Jumpers should not be
installed in the C and D jumper positions.
EIA-232 Serial Port Voltage Jumpers
The jumpers listed in Table 5.7 connect or disc5 Vdc to Pin 1 on the corresponding
EIA
-
232 serial ports. The +5 Vdc is rated at 0.5 A maximum for each port. See Table 10.2 in
Section 10: Serial Port Communications and Commands
for EIA
-
232 serial port pin functions.
In a
standard relay shipment
, the jumpers are “OFF” (removed/not in place) so that the +5 Vdc
is not connected to Pin 1 on the corresponding EIA-232 serial ports. Put the jumpers “ON” (in
place) so that the +5 Vdc is connected to Pin 1 on the corresponding EIA-232 serial ports.
Condition of Acceptability for North American Product Safety Compliance
To meet product safety compliance for end-use applications in North America, use an external
fuse rated 3 A or less in-line
with the +5 Vdc source on Pin 1. SEL fiber-optic transceivers
include a fuse that meets this requirement.
Table 5.7: EIA-232 Serial Port Voltage Jumper Positions
for Standard Relay Shipments
SEL-300G Relay
Model Number
EIA-232 Serial
Port 2 (rear panel)
EIA-232 Serial
Port 3 (rear panel)
Reference Figure
All Models
JMP2 = OFF
JMP1 = OFF
Содержание SEL-300G
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