Comnet RLFDX485M2-48DC, RLFDX485M2-HV, RLFDX485S2-24DC, RLFDX485S2-48DC, RLFDX485S2-HV Specsheet

Substation-Rated RS-232, RS-422, RS-485 2/4 Wire, & TTL Logic Data

Link/Repeater for Replacement of Garrettcom/Dymec 5800-Series

RLFDX(485,232)(M,S)2/(24DC,48DC,HV) Series

EXCLUSIVE

The ComNet RLFDX series of serial data link/repeaters are substation-rated and industrially
hardened form, fit, function and completely backwards-compatible replacements for the popular
Garrettcom/Dymec 5843, 5844, 5845, and 5846-series of serial data link/repeaters. They are
designed for deployment in environments where high levels of electromagnetic noise and
interference (EMI) and severe voltage transients and surges are routinely encountered, such as
electrical utility substations and switchyards, heavy manufacturing facilities, trackside and roadside
electronic equipment, and other difficult out-of-plant applications. Optical connectivity provides
significantly extended transmission distances compared to copper media; high levels of electrical
isolation; enhanced reliability and protection for peripheral IEDs, RTUs, and other equipment; and
operational safety.

The RLFDX series of serial data link/repeaters are easily field-configurable for point-to-point, point­to-multipoint/master-slave, loop, or bus topologies. They may be also used for electrical data
protocol conversion: an RLFDX232 RS-232 modem and IED/RTU can communicate directly with an
RLFDX485 RS-422/RS-485 modem and IED/RTU.

The extremely versatile and simple-to-install RLFDX series is ideal for any mission-critical application
where very high levels of reliability and network availability are of the utmost importance.

FEATURES

› Fully electrically, mechanically, and optically identical to and

backward-compatible with the Garrettcom/Dymec 5843, 5844,
5845, and 5846 Series. A ComNet RLFDX may directly replace a
Dymec unit anywhere within the network.

› Full-duplex, half-duplex, or simplex transmission of RS-232,

RS-422, RS-485 2/4-wire data, or TTL logic

› Tested and certified to meet or exceed the requirements of

IEEE 1613 Class 2 for electrical utility substations

› RS-232 Version: DTE/DCE switching

› Diagnostic test mode feature tests the copper and optical

connections before the connected IED or RTU is active within
the network.

› Extended ambient operating temperature range of -40º to +85º C,

with no fan/forced air cooling, for use in virtually any environment

› Optical transmission distances of up to 5 km over multimode

fiber; 30 km over single-mode fiber

› +9 to 36 VDC, +/-36 to 59 VDC, or HV AC/DC (+/-88 to 300

VDC/85-264 VAC) operating power options. HV DC input
permits operation directly from station battery bus power.
48 VDC and HV models’ DC inputs are isolated from ground,
allowing operation from positive or negative DC sources.

› Internal/self-contained high-reliability power supply – a screw

terminal block connects directly to the power source for
permanent, reliable, and maintenance-free operation

› LED status indicators confirm operating status

› Rugged galvannealed and powder-coated panel-mount enclosure

CLA SS 1 DIV 2

› IP-30 rated for ingress protection (2.5 mm objects)

› Conformal coating of the circuit boards is optionally available,

for use in humidity with condensation conditions (extra charge,
see ordering information).

› Made in the USA

› Lifetime Warranty

-40˚ TO 85˚ C

1CONVERTERSUBSTATION

APPLICATIONS

› Electrical substation automation & SCADA networks,

protective relaying systems

› Power transmission & distribution systems, remote wind

farm, hydroelectric, and solar/photovoltaic power generation
facilities, and other electrical utility-specific applications

› Controlled access to electrical substations and power

generating facilities, and other high-value, mission-critical sites

› Industrial/Factory Automation & Process Control SCADA

Networks

› Chemical and petrochemical refining and processing facilities,

oil and gas pipelines/transmission systems, and mining
installations

› Food processing operations

› Wastewater treatment plants

› Railway/trackside control and monitoring systems

› ITS/Transportation traffic signalization networks

› Integrated data transmission networks

LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

RLFDX Series (RS232)

Substation-Rated RS-232, RS-422, RS-485 2/4 Wire, & TTL Logic Data

Link/Repeater for Replacement of Garrettcom/Dymec 5800-Series

SPECIFICATIONS (RS232 Models)

Data

Data Rate DC to 250 kbps
Data Transmission Asynchronous, simplex OR Full Duplex
Bit Error Rate 10-E9 Max.
Point to Point Latency 4 μS
Repeat Latency 400 nsec Max.

Fiber Optical Parameters

(At Maximum Operating Temperature)
Optical Budget Typical Multimode: 19.5dB

Single Mode: 19dB

Output Power Typical Multimode: -10.5 dBm peak

Singlemode: -14.5 dBm peak

Receiver Sensitivity Typical Multimode: -30 dBm peak (62.5 μ/125)

Single Mode: -33.5 dBm peak (9 μ/125)

Wavelength Multimode: 850 nm

Single Mode: 1310 nm

Transmission Distance Multimode: Up to 5 km

(62.5 μ/125 Cable @ 3 dB/km)
Single Mode: Up to 30 km
(9 μ/125 Cable @ 0.5 dB/km)

Compatible Fiber Type Multimode: 50-200 μm

Single Mode: 9 to 13 μm

Configuration Switches

DTE/DCE
AC/DC Coupled
Link/Repeat
Pin 8 Drive Current
Pin 6 +5 VDC (DSR or CTS pull up)
Diagnostic Mode

Connectors

Optical ST
Data DB-9 (9 Pin D-Type Female)
Power Removable, 3-pin Screw Terminal Block

Electrical Parameters

Inputs
I/O Data Format EIA RS232; CCITT v.24
Input Impedance >3000 Ω
Input Voltage +/-30 Volts Max.
Outputs
Output Impedance >300 Ω
Driver Output +/- Volts into 3000 Ω
Pin 8 Output 0 to 5 V
67 or 207 Ω Source Impedance

Power Required

24 VDC Multimode: +9 to 36 VDC @ 250 mA (3W)
Single Mode: +9 to 36 VDC @ 340 mA (4.1 W)
48 VDC Multimode: +/-36 to 59 VDC @ 250 mA (4W)
Single Mode: +/-36 to 59 VDC @ 340 mA (5.5 W)
HV Multimode: +/-88 to 300 VDC @ 35 mA (4 W)

or 85 to 264 VAC @ 35 mA (4 W)

Single Mode: +/-88 to 300 VDC @ 50 mA (5.5 W)

or 85 to 264 VAC @ 50mA (5.5 W)

Power Dissipation BTU/H

24 VDC Multimode: 8.2 BTU/hr

Single Mode: 10.2 BTU/hr

HV & 48 VDC Multimode: 10.9 BTU/hr

Single Mode: 12.3 BTU/hr

Mechanical

Indicating LEDs Power Transmit Fiber

Transmit Electrical Receive Fiber

Receive Electrical
Circuit Board Meets IPC Standard
Actual Weight HV & 48 VDC: 1.06 lb / 0.48 kg

24 VDC: 0.56 lb / 0.26 kg
Dimensions (W × L × H)
HV & 48 VDC: 4.1 × 5.1 × 1.3 in (10.41 × 12.95 × 3.3 cm)
24 VDC: 2.0 × 5.1 × 1.3 in (5.08 × 12.95 × 3.3 cm)

Environmental

MTBF >250,000 hours
Operating Temperature Multimode: -40˚C to +85˚C

Single Mode: -40˚C to +70˚C
Storage Temperature -40˚C to 85˚C
Relative Humidity 0% to 95% (non-condensing)¹

ORDERING INFORMATION (RS-232/TTL Models)

Model Data Format Fiber Type Input Power Equivalent Dymec Model

RLF DX232M2/24DC RS-232/ TTL Multimode 9 to 36 VDC 5843HRT

RLFDX232M2/HV RS-232/ TTL Multimode 88 to 300 VDC / 85 to 264 VAC 5844HRT-H

RLFDX232M2/48DC R S-232/TT L Multimode 36 to 59 VDC 5844HRT-L

RLFDX232S2/24DC RS-232 /TTL Single Mode 9 to 36 VDC 5843SHRT

RLFDX232S2/HV RS-232/ TTL Single Mode 88 to 300 VDC / 85 to 264 VAC 5844SHRT-H

RLFDX232S2/48DC RS-232 /TTL Single Mode 36 to 59 VDC 5844SHRT-L

Options [1] Add suffix ‘/C’ for Conformally Coated Circuit Boards to extend to condensation conditions (Extra charge, consult f actory)

NOTE: This product requires a fiber installation with a minimum 30 dB connector return loss. The use of Super Polish Connectors is
recommended. Complies with FDA Performance Standard for Laser Products, Title 21, Code of Federal Regulations, Subchapter J

In a continuing effort to improve and advance technology, product specifications are subject to change without notice.

LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

RLFDX Series (RS422/485)

Substation-Rated RS-232, RS-422, RS-485 2/4 Wire, & TTL Logic Data

Link/Repeater for Replacement of Garrettcom/Dymec 5800-Series

SPECIFICATIONS (RS422/485 Models)

Data

Data Rate DC to 2 Mbps
Data Transmission Asynchronous, simplex OR Full Duplex
Bit Error Rate 10-E9 Max.
Point to Point Latency 500 nsec Max.
Repeat Latency 400 nsec Max.

Fiber Optical Parameters

(At Maximum Operating Temperature)
Optical Budget Typical Multimode: 19.5 dB

Single Mode: 19 dB

Output Power Typical Multimode: -10.5 dBm peak

Single Mode: -14.5 dBm peak

Receiver Sensitivity Typical Multimode: -30 dBm peak (62.5 μ/125)

Single Mode: -33.5 dBm peak (9 μ/125)

Wavelength Multimode: 850 nm

Single Mode: 1310 nm

Compatible Fiber Type Multimode: 50-200 μm

Single Mode: 9-13 μm

Transmission Distance Multimode: Up to 5 km

(62.5 μ/125 Cable @ 3 dB/km)
Single Mode: Up to 30 km
(9 μ/125 Cable @ 0.5 dB/km)

Configuration Switches Half/Full Duplex

AC/DC
Link/Repeat
Biasing Resistors In/Out
Data Inversion Mode
Enable Holdover (4 settings)
Diagnostic Mode

Connectors

Optical ST
Data DB-9 (9 Pin D-Type Female)
Power Removable, 3-pin Screw Terminal Block

Electrical Parameters

Inputs
I/O Data Format EIA 422/485
Input Impedance 750 Ω
Input Voltage +12 to -7 Volts Max referenced to signal common

+/-6 Volts differential Max
Outputs
Output Impedance >250 Ω
Driver Output 50 mA

Power Required

24 VDC Multimode: +9 to 36 VDC @ 250 mA (3 W)
Single Mode: +9 to 36 VDC @ 340 mA (4.1 W)
48 VDC Multimode: +/-36 to 59 VDC @ 250 mA (4 W)
Single Mode: +/-36 to 59 VDC @ 340 mA (5.5 W)
HV Multimode: +/-88 to 300 VDC @ 35 mA (4 W)

or 85 to 264 VAC @ 35 mA (4 W)

Single Mode: +/-88 to 300 VDC @ 35 mA (5.5 W)

or 85 to 264 VAC @ 50mA (5.5 W)

Power Dissipation BTU/H

24 VDC Multimode: 10 BTU/hr

Single Mode: 14 BTU/hr
HV & 48 VDC Multimode: 20 BTU/hr

Single Mode: 27 BTU/hr

Mechanical

Indicating LEDs Power Transmit Fiber Transmit Electrical

Receive Fiber Receive Electrical
Circuit Board Meets IPC Standard
Actual Weight HV & 48 VDC: 1.06 lb / 0.48 kg

24 VDC: 0.56 lb / 0.26 kg
Dimensions (W × L × H)
HV & 48 VDC: 4.1 × 5.1 × 1.3 in (10.41 × 12.95 × 3.3 cm)
24 VDC: 2.0 × 5.1 × 1.3 in (5.08 × 12.95 × 3.3 cm)

Environmental

MTBF >250,000 hours
Operating Temperature Multimode: -40˚C to +85˚C

Single Mode: -40˚C to +70˚C
Storage Temperature -40˚C to 85˚C
Relative Humidity 0% to 95% (non-condensing)¹

ORDERING INFORMATION (RS-422/RS-485 Models)

Model Data Format Fiber Type Input Power Equivalent Dymec Model

RLFDX485M2/24DC RS- 422/485 Multimode 9 to 36 VDC 5845HRT

RLFDX485M2/HV RS- 422/485 Multimode 88 to 300 VDC / 85 to 264 VAC 5846HRT-H

RLFDX485M2/48DC RS-422/485 Multimode 36 to 59 VDC 5846HRT-L

RLFDX485S2/24DC RS-422/485 Single Mode 9 to 36 VDC 5845SHRT

RLFDX485S2/HV RS- 422/485 Single Mode 88 to 300 VDC / 85 to 264 VAC 5846SHRT-H

RLFDX485S2/48DC RS-422/485 Single Mode 36 to 59 VDC 5846SHRT-L

Options [1] Add suffix ‘/C’ for Conformally Coated Circuit Boards to ex tend to condensation conditions (Extra charge, consult fac tory)

NOTE: This product requires a fiber installation with a minimum 30 dB connector return loss. The use of Super Polish Connectors is
recommended. Complies with FDA Performance Standard for Laser Products, Title 21, Code of Federal Regulations, Subchapter J

In a continuing effort to improve and advance technology, product specifications are subject to change without notice.

3 CORPORATE DRIVE

8 TURNBERRY PARK ROAD

|

DANBURY, CONNECTICUT 06810

|

GILDERSOME

|

MORLEY

|

|

USA

T: 203.796.5300

|

LEEDS, UK LS27 7LE

|

F: 203.796.5303

|

T: [phone]

|

TECH SUPPORT: 1.888.678.9427

|

F: [phone]

|

[e-mail]

|

[e-mail]

17 Mar 2016© 2016 Communic ation Netwo rks. All Right s Reserv ed. “ComNet ” and the “ComNe t Logo” are regis tered tra demarks of Com munication Net works.

RLFDX Series

5.18 cm

2.82 cm

+/– 88 to 300

WITH

5.13 in

A

Substation-Rated RS-232, RS-422, RS-485 2/4 Wire, & TTL Logic Data

Link/Repeater for Replacement of Garrettcom/Dymec 5800-Series

OUTLINE & INSTALLATION DWG. A

For Models:
RLFDX232M2/24DC
RLFDX232S2/24DC
RLFDX485M2/24DC
RLFDX485S2/24DC

1.13 in

0.46 in

1.16 cm

0.51 in

1.29 cm

TYPE ST

FIBER OPTIC

CONNECTOR

9 TO 36 VDC INPUT

4.13 in

10.41 cm

5.13 in

13.03 cm

4.63 in

11.76 cm

#6-32 THREAD SST

1.28 in

3.25 cm

0.17 in

0.43 cm

REMOVABLE
SWITCH ACCESS PLATE

9 PIN D-CONNECTOR WITH
#4-40 STANDOFFS

2.04 in

OUTLINE & INSTALLATION DWG. B

For Models:
RLFDX232M2/HV
RLFDX232M2/48DC
RLFDX232S2/HV
RLFDX232S2/48DC
RLFDX485M2/HV
RLFDX485M2/48DC
RLFDX485S2/HV
RLFDX485S2/48DC

GENCY COMPLIANCE

INPUT:

85 to 264 VAC

+/– 36 to 59 VDC

13.03 cm

#6-32 THREAD SST

VDC

OR

2.0 in

4.15 in

5.08 cm

10.54 cm

0.51 in

1.29 cm

1.16 cm

0.46 in

TYPE ST

FIBER OPTIC

CONNECTOR

4.63 in

11.76 cm

4.13 in

10.41 cm

REMOVABLE
SWITCH ACCESS PLATE

9 PIN D-CONNECTOR
#4-40 STANDOFFS

1.28 in

3.25 cm

3 CORPORATE DRIVE

8 TURNBERRY PARK ROAD

|

DANBURY, CONNECTICUT 06810

|

GILDERSOME

|

MORLEY

|

|

USA

T: 203.796.5300

|

LEEDS, UK LS27 7LE

|

F: 203.796.5303

|

T: [phone]

|

TECH SUPPORT: 1.888.678.9427

|

F: [phone]

|

[e-mail]

|

[e-mail]

17 Mar 2016© 2016 Communic ation Netwo rks. All Right s Reserv ed. “ComNet ” and the “ComNe t Logo” are regis tered tra demarks of Com munication Net works.