Schweitzer Engineering SEL-387-0 - Page 289

7.5
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Serial Port Communications and Commands
Establish Communication
SEL-387 to Modem
*DCE = Data Communications E
q
ui
p
ment (Modem, etc.)
SEL-387 Rela
y
9-Pin
M
al
e
"D"
Subco
nn
ector
"D"
Subco
nn
ector
25-Pin
M
al
e
5
7
3
7
2
2
2
0
3
G
N
D
G
N
D
TXD
TXD
(
IN
)
RT
S
DTR
(
IN
)
RXD
RXD
(
OUT
)
8
8
C
T
S
CD
(
OUT
)
9
1
G
N
D
G
N
D
Pin
F
u
n
c.
Pin
F
u
n
c.
Pin
#
Pin
#
*D
C
E D
e
vi
ce
Cable C222
SEL-387 Rela
y
9-Pin
M
al
e
"D"
Subco
nn
ector
"D"
Subco
nn
ector
25-Pin
M
al
e
5
7
3
7
2
2
2
0
3
G
N
D
G
N
D
TXD
TXD
(
IN
)
RT
S
DTR
(
IN
)
RXD
RXD
(
OUT
)
8
8
C
T
S
CD
(
OUT
)
1
1
0
+
5
VD
C
PWR
(
IN
)
9
1
G
N
D
G
N
D
Pin
F
u
n
c.
Pin
F
u
n
c.
Pin
#
Pin
#
M
odem
5
V
dc
P
o
w
e
r
ed
*D
C
E D
e
vi
ce
Cab
l
e
C
22
0