Option L – Line and Radio Interface FSK
Features:
The line option board provides a Private Line or Radio interface and is software configurable for either of these modes. There are two revisions of the line option board.
The original revision 'LINE-L' had a configurable output level (using Toolbox software). The newer revision 'LINE-2' has a fixed output level. Both have the same specifications.
Overview
- Private/Line radio interface board
- Fits CP-10, CP-11, CP-21, CP-30, MC-10, MC-11, LP-1
Order Information
- COMMS-OPTION-L (2/4 Wire Line for CP-11/CP-21/MC-11, option port 2/3)
Datasheets
| Product specifications: | |
| General | |
| Baudrate | 1200 Baud |
| Modulation | FSK, CCITT V.23 |
| Carrier detect input | Optical isolation Active low or high Min. input 2mA (70VDC max.) |
| RTS/PTT output Microwave networks typically use a negative supply rail for the carrier detect circuit. The more positive rail should be connected to pin #6 (RTS/PTT) and the difference between the rails must not exceed 30VDC. |
Optical isolation Open collector output Active low 30VDC max. at 20mA max. |
| Output impedance | 30 K ohm |
| Input impedance | 30 K ohm |
| Line termination | 600 ohm |
| Line configuration | 2 or 4 wire The port is not full duplex and cannot use the full duplex functionality of a 4-wire configuration. 4-wire configurations eliminate the ability to communicate peer to peer but allow an increased number of drops on one link. |
| Line drive in multidrop configuration | 10 drops for 2 wire 20 drops for 4 wire |
| Transmit output level | -6 dBm (LINE-2) -6 to -21 dBm software configurable (LINE-L) |
Receive level |
-43dBm to -9dBm |
Transmission Distance |
Allowing 3dB for background noise and a 10dB fade margin, up to 24dB of cable loss can be tolerated. Therefore, transmission distance = 24 / cable loss per Km (dB). Note: if there are more than 2 RTUs (or other devices) on the line, reduce the allowable cable loss (24) by 1dB per additional RTU or device. |
| Configuration Software | Toolbox |
| Internal Power Consumption | 85 mA from +5VDC Bus on backplane |
| Isolation | 3.88 kV |
| Environmental | |
| Operating Temperature | -20°C to 70°C / -4°F to 158°F |
| Storage Temperature | -40°C to 85°C / -40°F to 185°F |
| Operating Humidity | 5 to 98% RH non-condensing |
Provides a private line or radio interface.
