Date Code 20010518 Installation 3-5
SEL-2020 Instruction Manual
Table 3.2: Communication Cables for Devices Attached to SEL-2020
SEL
Cable #
Connect SEL-2020 to:
Remote Connector
(on cable)
Port
Type
RTS/CTS
Supported
IRIG-B
Included
C157A Existing SEL-PRTU Relay Cable retrofit 9-pin Con-X-All
(female)
no no
C222 25-pin DCE devices:
Standard modem,
ABB 25-pin PONI module
DB-25P DCE no no
C223A 25-pin DTE Devices:
Beckwith M0420 (25-pin)
Black Box COS Port Switch
GE 90-70 & 90-30 PCM (PLC),
GEC Optimho Relay,
GE DLP/DFM
DB-25P DTE no no
C225 9-pin DCE devices:
9-pin modem
DB-9P DCE no no
C227A 25-pin DTE devices:
Standard 25-pin computer
DB-25S DTE no no
C234A 9-pin DTE devices:
Standard computer
DB-9S DTE no no
C239 9-pin DTE devices w/ IRIG-B:
SEL-200/321 Series Relays
DB-9P, DB-9P DTE/
IRIG-B
yes yes
C241 25-pin DCE devices:
ABB SADI,
Black Box COS Port Switch (DCE),
Baytech Port Switch
DB-25P DCE no no
C245A 9-pin DCE devices:
RFL-9660 Digital Port Switch
DB-9S DCE yes no
C246A 9-pin DCE devices:
Rochester Instrument Sys, CIU,
Basler 9-pin DCE
DB-9P DCE no no
C247 25-pin DTE devices
Systems Northwest RTU
DB-25P DTE no no
C255 Quantum Meter DB-25P N/A no no
C272A 9-pin DTE devices:
ABB DPU2000R
DB-9P DTE no no
C273A 9-pin DTE devices w/ IRIG:
SEL-500 Series,
SEL-300 Series except SEL-321
DB-9P DTE/
IRIG-B
yes yes
C276 9-pin DTE device w/ IRIG:
SEL-2020 EIA-232 & IRIG-B
DB-9P,
BNC
DTE/
IRIG-B
yes yes
C277 9-pin DTE devices:
MODICON 9-pin DTE
DB-9P DTE no no
C278 Scientific Columbus JEM-10
Meter w/ Curo Style Connector
No connector
(tinned wires)
N/A no no
C279 25-pin DTE device w/ IRIG:
GE-DLP EIA-232 & IRIG-B
DB-25P,
BNC
DTE/
IRIG-B
no yes
C280 Harris WESDAC D20M
RFL-9300
DB-9S DTE no no
C281 9-pin DTE devices:
Standard computer,
RFL-9745,
ABB 9-pin PONI Module (DTE),
Beckwith M0420 (9-pin)
DB-9S DTE yes no
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