Schweitzer Engineering SEL-387-0 - Page 288

7.4
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Serial Port Communications and Commands
Establish Communication
SEL-387 to Computer
*DTE = Data Terminal E
q
ui
p
ment (Com
p
uter, Terminal, etc.
)
SEL-387 Rela
y
9-Pin
M
al
e
"D"
Subco
nn
ector
"D"
Subco
nn
ector
9
-Pin F
e
m
a
l
e
2
3
3
5
8
2
5
8
7
RXD
TXD
TXD
RXD
G
N
D
G
N
D
C
T
S
C
T
S
RT
S
D
CD
DTR
D
SR
1
4
6
Pin
F
u
n
c.
Pin
F
u
n
c.
Pin
#
Pin
#
Cable C234A
*DTE D
e
vi
ce
SEL-387 Rela
y
9-Pin
M
al
e
"D"
Subco
nn
ector
"D"
Subco
nn
ector
2
5
-Pin F
e
m
ale
5
7
3
2
9
3
2
1
5
G
N
D
G
N
D
TXD
RXD
RXD
TXD
G
N
D
G
N
D
C
T
S
D
SR
D
CD
DTR
6
8
2
0
8
4
C
T
S
RT
S
Pin
F
u
n
c.
Pin
F
u
n
c.
Pin
#
Pin
#
Cable C227A
*DTE D
e
vi
ce