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Market Applications
- Point-to-point transmission applications
- Cost effective thin route applications
- Long haul telecommunication links
- Cellular backhaul
- Last mile links
- Trunked radio
- SCADA
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LEDR 1400F (1350-1535 MHz)
LEDR Protected
LEDR Fractional T1/E1 Interface
Product Overview
The new subrate LEDR microwave radio family provides full duplex, scalable bandwidth and capacity from 64 kbps to 768 kbps in a 250 kHz channel. These radios are designed to operate in a point-to-point environment with a wide range of applications. They are especially effective for telecommunications access and transport links, wireless backbones for SCADA systems, and for use as backhauls to extend existing telecommunication channels. The subrate LEDR microwave radio is designed to connect to any industry standard EIA-530, V.35, fractional T1 or E1 source.
Features
- Frequency Range: 1350 MHz to 1535 MHz
- Data Rates available: 64, 128 and 768 kbps
- Spectrally Efficient: 16 QAM
- Excellent Sensitivity: Better than –102 dBm @ 10-6 BER at 64 kpbs
- Advanced Modem Features: FEC, Interleaver and Adaptive Equalizer
- Front Panel Displays for Easy Maintenance and Link Monitoring
- Built-in NMS Element Manager
- SNMP Network Management for Fault, Configuration, Performance and Security Management
- Integrated HTML web server allows networkwide management via the Internet
- Built in 9600 bps Data Service Channel
- Local Loopback and Remote Loopback
- 8 Relay Alarm Contacts per Radio
- DTMF Compatible Orderwire
- Optional interfaces for direct connection to Fractional T1/E1 circuits
- Optional 1+1 hot or warm stand-by protected configuration
- Optional space diversity configuration
More Information
Specifications
| General |
| Frequency Range: |
LEDR 1400S: 1350-1535 MHz |
| RF Occupied Bandwidth: |
25, 75 and 250 kHz |
| User Data Rates: |
64 kbps, 128 kbps, 768 kbps |
| Modulation Type: |
16 QAM |
| FEC: |
Reed Solomon |
| Temperature Range: |
–10° to 50° C |
| Humidity: |
< 95% non-condensing |
| Voltage Range: |
±24 Vdc,or ±48 Vdc (±20%) |
| Power Consumption: |
Non-Protected: <60 W, Protected: <135 W |
| Size: |
4.5cm (1U) x 48cm x 30cm
1.75in x 19in x 12in
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System Performance |
| Channel Spacing |
25 kHz |
75 kHz |
250 MHz |
| Capacity |
Plus Overhead |
72 kbps |
152 kbps |
800 kbps |
| w/o Overhead |
64 kbps |
128 kbps |
768 kbps |
Receiver Sensitivity
(10-6 BER)1 (16 QAM) |
-102 dBm |
-100 dBm |
-92 dBm |
System Gain
(10-6 BER) (32 QAM) |
133 dB |
131 dB |
123 dB |
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1. Receiver sensitivity for 10-3 BER are typically 3 dB better
2. Additional overhead channels over and above capacity shown |
Transmitter |
| Power Output at antenna port: |
+31 dBm (16 QAM) |
| Output Control Range: |
10 steps of up to 10 dB |
| Frequency Stability: |
1.5 ppm |
| Spurious Outputs: |
exceeds ETSI specifications <-80 dBc |
Receiver |
| Residual BER: |
< 1x10-10 |
| Dynamic Range: |
> 65 dB |
Interfaces |
| Data: |
EIA-530 /G.703 (option available) |
| Orderwire: |
DTMF capable |
| Data Service Channel: |
RS-232, 300-9600 bps |
| Ethernet NMS: |
10 Base-T |
| Console Port: |
RS-232, 300 bps to 115.2 kbps |
| Alarms: |
4 programmable outputs,
4 programmable inputs
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| Antenna: |
50 Ohms Impedance |
Options |
| |
Space Diversity
Hot-standby Protected
Bandwidth Upgrade Kits (consult factory for details)
Bandpass Duplexers
Integrated Multiplexers (see separate specification sheet) |
Network Management |
| Local LED Indicators: |
Front Panel LED status indicate: Power, Active, General Alarm, Rx Alarm, Tx Alarm, I/O Alarm. |
| Front Panel LCD: |
Display & keypad for management of local & remote radio. |
| Element Management: |
Full management of LEDR network via command line interface. |
| SNMP Management: |
Full IP-based management of LEDR network and SNMP-enabled peripherals via custom enterprise MIB |
| HTML Webserver: |
Full IP-based management of LEDR network and web-enabled peripherals via any web browser (e.g. Netscape™ or Internet Explorer™) |
Accessories |
| |
110/240 Vac , 50/60 Hz Power Supply
Orderwire Handset
G.703 120 Ohms to 75 Ohms balun |
Protected |
| Configuration: |
2 x LEDR radios, connected via protected switch box |
| Total Size: |
2 x 1 RU high + 1 x 2 RU high |
| Transmit Branching Loss: |
2 dB |
| Receive Branching Loss: |
5 dB |
| Receive Switching: |
Hitless |
Agency Approvals for LEDR 1400S |
| Transmission: |
ETS 300 630, MPT 1717 Class 3 |
| Environmental: |
ETS 300 019,Class 3.2 |
| EMC: |
ETS 300 385 |
| Safety: |
CE Mark |
LEDR Fractional T1/E1 Interface Card
General Specifications |
| Line Rate: |
T1 (1.544 Mbps); E1 (2.048 Mbps) |
| Channel Size: |
200 kHz |
| Data Rate: |
768 kbps (12 x 64 kbps) |
| Framing: |
SF, ESF (T1); FAS, CAS, CRC (E1) |
| Signaling: |
RBS (T1); Time Slot 16 CAS (E1) |
| Line Codes: |
AMI, B8ZS, B7ZS (T1); AMI, HDB3 (E1) |
| Interface: |
RJ48C Balanced Interface
100 Ohms (T1), 120 Ohms (E1) |
Physical |
| Size: |
15.24 cm x 12.7 cm (6 in x 5 in) |
| Configuration: |
Option card, fitted internal to LEDR chassis |
| Availability: |
Fractional E1: LEDR 1400S |
Configuration Diagram
GE MDS products are manufactured under a quality system certified to ISO 9001. GE MDS reserves the right to make changes to specifications of products described in this data sheet at any time without notice and without obligation to notify any person of such changes.
Copyright 2005 GE MDS Inc. (Part No. LEDR Subrate) SL0121 Rev. B, 05-13-05
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