Call us now: 
Cart
RLH offers a broad selection of high-voltage isolation card systems, which are the safest, most reliable, and most versatile available today.
2 Wire POTS
The 2 Wire POTS (Plain Old Telephone Service) system provides transmission of standard analog phone.
$980.00 – $1,600.00
View Product
2 Channel POTS
The 2 Channel POTS Fiber Link Cards are fully featured and hardened for substation and critical application use.
$1,260.00 – $1,700.00
View Product
4 Channel POTS
The 4 Channel POTS Fiber Link Cards are fully featured and hardened for substation and critical application use.
$1,620.00 – $2,060.00
View Product
Single Channel T1
The Single Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$1,130.00 – $1,750.00
View Product
2 Channel T1 Mux
The 2 Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$1,480.00 – $2,100.00
View Product
4 Channel T1 Mux
The 4 Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$2,380.00 – $3,000.00
View Product
4 Wire Analog Data
The 4 Wire Analog Data fiber link card transmits a 600 Ohm voice frequency signal over fiber.
$1,090.00 – $1,710.00
View Product
4 Wire Data with E&M
This system provides simultaneous transmission of 4-wire data and single or bidirectional E&M over two fibers.
$1,180.00 – $1,800.00
View Product
Gigabit Ethernet SFP
The Gigabit Ethernet Card transmits a copper gigabit Ethernet signal over fiber and also includes integrated relay alarms to indicate fiber and copper link states.
$1,190.00
View Product
10/100/1000 Ethernet
The 10/100/1000 Fiber Link Card transmits a copper Gigabit Ethernet signal over Fiber.
$990.00 – $1,430.00
View Product
10/100 Ethernet
The 10/100 Fiber Link Card transmits a copper Fast Ethernet signal over Fiber.
$910.00 – $1,350.00
View Product
RS-232
Transmits copper RS-232 serial data over fiber optic cable, supports full 9-PIN RS-232 applications.
$870.00 – $1,310.00
View Product
RS-232 & 485/422
The Serial Data Fiber Link Card transports two active channels of copper serial data over fiber optic cable.
$870.00 – $1,310.00
View Product
4 Channel Contact Closure
This system provides a transmission of up to four independent contact closure signals over one optical fiber.
$920.00 – $1,050.00
View Product
8 Channel Contact Closure
This system provides a transmission of up to Eight independent contact closure signals over one optical fiber.
$1,050.00 – $1,180.00
View Product2 Wire POTS
The 2 Wire POTS (Plain Old Telephone Service) system provides transmission of standard analog phone.
$980.00 – $1,600.00
View Product2 Channel POTS
The 2 Channel POTS Fiber Link Cards are fully featured and hardened for substation and critical application use.
$1,260.00 – $1,700.00
View Product4 Channel POTS
The 4 Channel POTS Fiber Link Cards are fully featured and hardened for substation and critical application use.
$1,620.00 – $2,060.00
View ProductSingle Channel T1
The Single Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$1,130.00 – $1,750.00
View Product2 Channel T1 Mux
The 2 Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$1,480.00 – $2,100.00
View Product4 Channel T1 Mux
The 4 Channel T1 Fiber Link Card converts electrical/copper T1 signals and transports them over fiber.
$2,380.00 – $3,000.00
View Product4 Wire Analog Data
The 4 Wire Analog Data fiber link card transmits a 600 Ohm voice frequency signal over fiber.
$1,090.00 – $1,710.00
View Product4 Wire Data with E&M
This system provides simultaneous transmission of 4-wire data and single or bidirectional E&M over two fibers.
$1,180.00 – $1,800.00
View ProductGigabit Ethernet SFP
The Gigabit Ethernet Card transmits a copper gigabit Ethernet signal over fiber and also includes integrated relay alarms to indicate fiber and copper link states.
$1,190.00
View Product10/100/1000 Ethernet
The 10/100/1000 Fiber Link Card transmits a copper Gigabit Ethernet signal over Fiber.
$990.00 – $1,430.00
View Product10/100 Ethernet
The 10/100 Fiber Link Card transmits a copper Fast Ethernet signal over Fiber.
$910.00 – $1,350.00
View ProductRS-232
Transmits copper RS-232 serial data over fiber optic cable, supports full 9-PIN RS-232 applications.
$870.00 – $1,310.00
View ProductRS-232 & 485/422
The Serial Data Fiber Link Card transports two active channels of copper serial data over fiber optic cable.
$870.00 – $1,310.00
View Product4 Channel Contact Closure
This system provides a transmission of up to four independent contact closure signals over one optical fiber.
$920.00 – $1,050.00
View Product8 Channel Contact Closure
This system provides a transmission of up to Eight independent contact closure signals over one optical fiber.
$1,050.00 – $1,180.00
View Product