Extend Analog Data Circuits with E&M Signaling Over Fiber
- 4 Wire data with E&M function
- Full duplex, constant transmission
- Dual power capable, line or 24-56VDC
- Available in Single or Multi-mode
- Available with ST or SC Connectors
- Compatible with wide variety of housings
- Made in USA
The 4 wire data E&M system provides simultaneous transmission of 4-wire data and single or bidirectional E&M over two optical fibers, providing point-to-point isolation of Telco or 4-wire PABX trunk lines using E&M leads.
The 4-wire data supports full duplex constant transmission up to 9600 bps in voice frequency range (300Hz-3.4KHz). 2-wire data is half duplex, and 4-wire data is full duplex. The E&M card interfaces with an E&M input and provides a contact closure on the far end. The cards have convenient E&M input and output status LED indicators.
This fiber link card is designed to be installed into any of the RLH fiber link card housings, and occupies a single card slot.
Transmission Method:
Frequency modulated light via two optical fibers
Wavelength:
Multimode: 850nm
Singlemode: 1310nm
Fiber Type/Distance:
Multimode (62.5/125µm): 1.2 miles/2km
Singlemode (9/125µm): 9 miles/15km; Long Haul 31 miles/50km
Fiber Connector Type:
ST or SC
Dimensions:
7in. x 4in. x 1in. (177.8mm x 101.6mm x 25.4mm)
(Standard RLH Fiber Link Card Form Factor)
Operating Temperature:
-40˚F to +158˚F (-40˚C to +70˚C)
Operating Humidity:
95% non-condensing
4 Wire Data E&M System
*Click a diagram for a larger, isolated view
- A complete system requires a CO card and a SUB card
- This card is designed to be installed into a Card Housing
Please submit a quote request or contact your RLH sales representative for pricing and delivery information.
8806-1238-02
8806-1248-02
8805-1238-02
8805-1248-02
8806-1277-01
8806-1287-01
8805-1277-01
8805-1287-01
8806-1277-01-LH
8806-1287-01-LH
8805-1277-01-LH
8805-1287-01-LH
RLH-RJ4W-CO
RLH-RJ4W-SUB
