SLR5500
The SLR5500 is a 2nd generation DMR repeater from Motorola Solutions that offers high performance and efficiency in a 19-ich 1U form factor. It supports 50W continuous-duty output and improved sensitivity.
Main Features
Some of the main features include:
- Analogue operation
- Dynamic Mixed Mode operation
- Extended Range Direct Mode (Single Frequency Repeater) operation[1].
- Support for MPT1327 operation with an external 3rd party site controller.
- Support for Digital Telephone Patch via an external Analogue Phone Patch[1].
- Single Site Digital conventional operation
- IP Site Connect operation
- Single/Multi-site Capacity Plus operation[1]
- Capacity Max trunked mode operation[1]
- Satellite Receiver operation.
- Built-in battery charger.
Connections[2]
The following connections are available on the rear of the unit:
- AC mains power socket.
- Power switch.
- 13,2Vdc DC power socket.
- GPS option slot (not used).
- Wi-Fi option slot (not used).
- USB host socket (not used).
- Ethernet 2 socket (not used).
- Ethernet 1 socket
- D25F Auxiliary connector
- Receiver BNC connector
- High stability reference oscillator input
- Ground screw
- Transmitter N-type connector.
The connections listed as not used above, are present but do not function. They are in place for future expansion.
Auxiliary Connector Pinout
| Pin | Function | Note | |
|---|---|---|---|
| 1 | TX Audio | Nominal input level is 80mVrms for 60% deviation with scaling factor set to 100%.
600 Ω input impedance. | |
| 2 | GPIO 1 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 3 | Not Used | ||
| 4 | GPIO 2 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 5 | GPIO 10 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 6 | GPIO 9 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 7 | RX Audio | Nominal output level is 330mVrms (into a 50kΩ load) with a 60%
deviation receive signal. 1kΩ output impedance. | |
| 8 | GPIO 6 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 9 | Ground | ||
| 10 | GPIO 7 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 11 | GPIO 11 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 12 | GPIO 12 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 13 | TX Data | Transmit input for Data; PL or DPL.
Nominal input level is 80 mVrms for 20% deviation with scaling factor set to 100%. 600Ω input impedance. | |
| 14 | Not Used | ||
| 15 | GPIO 3 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 16 | Ground | ||
| 17 | Ground | ||
| 18 | Ground | ||
| 19 | Ground | ||
| 20 | Fused B+ | The B+ is 13.6 VDC when repeater is sourced by AC, and can range from 11–14.4 VDC when sourced by DC.
1A maximum. | |
| 21 | GPIO 8 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 22 | TX Audio | Nominal input level is 80 mVrms for 60% deviation with scaling factor set to 100%.
600Ω input | |
| 23 | GPIO 4 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 24 | GPIO 5 | Input:
Logic Low: 0 - 0,8Vdc Logic High: 3-14Vdc |
Output:
Logic Low: <0,5Vdc Logic High: Open Collector with 4.7kΩ pull-up to 5 V |
| 25 | Not Used | ||
Specifications[2]
Note: Only the ETSI specifications are listed below.[3]
| VHF | UHF | 300MHz | |
|---|---|---|---|
| Frequency Range | 136-174MHz | 400-470MHz | 300-60MHz |
| Channel Capacity | 64 | ||
| RF Output Power | 1 - 50W in 100mW increments | ||
| Dimensions (HWD) | 44 x 383 x 370mm | ||
| Weight | 8,6kg | ||
| Input Voltage (AC) | 100-240V 47-63Hz | ||
| Current Consumption (AC Standby) | 0,25A | ||
| Current Consumption (AC Transmitting) | 0,9A | ||
| Input Voltage (DC) | 11,0 - 14,4V | ||
| Current Consumption (DC Standby) | 0,7A | ||
| Current Consumption (DC Transmitting) | 9,5A | ||
| Operating Temperature Range | -30°C to +60°C | ||
| Humidity | 95% RH non-condensing at 50°C | ||
| Maximum Duty Cycle | 100% | ||
| Channel Spacing | 12,5; 20 and 25kHz (CPS configurable) | ||
| Frequency Stability | 0,5ppm | ||
| RX Sensitivity | 0,22µV at 12 dB SINAD or 5% BER | ||
| RX Selectivity[3] | 63dB at 12,5kHz; 70dB at 20 and 25kHz | ||
| RX Intermodulation Rejection[3] | 73dB | ||
| TX Audio Distortion | >1% | ||
| Audio Response | TIA603D | ||
| TX RF Power Output | 1-50W | ||
| Channel Spacing | 12,5; 20 and 25kHz (CPS configurable) | ||
| Frequency Stability | 0,5ppm | ||
| TX Intermodulation Attenuation | 40dB | ||
| TX Adjacent Channel Power[3] | 62dB at 12,5kHz; 78dB at 20 and 25kHz | ||
| TX Conducted Spurious Emissions | -36dBm<1GHz; -30dBm<1GHz | ||
| TX 4FSK Modulation Fidelity | FSK error 5%; FSK magnitude 1% | ||
| TX Receiver Hum and Noise | -45dB at 12,5kHz and 20kHz; -50dB at 25kHz | ||
| Rated System Deviation | 2,5kHz at 12,5kHz; 4kHz at 20kHz and 5kHz at 25kHz | ||