Physical Layer Tester (PLT-M)
Square Peg Communications Inc.’s fourth-generation Physical Layer Tester (PLT-M) is a generic PC based test tool which supports the testing and type approval of mobile terminals and base stations for various satellite or wireless communications networks. The PLT-M is based on Square Peg’s Multi-Channel Platform (MCP) Channel Unit, a software-defined radio providing baseband-to-RF functionality.
The generic PLT-M hardware platform runs software specific to the equipment type under test. The following applications are currently available or in development:
|
Product |
Inmarsat Standards |
|
BGAN, FleetBroadband, SwiftBroadband, SB-SAT |
|
|
IsatData Pro |
|
|
Classic Aero |
Source
Internal / External
Physical and Environmental |
|
|---|---|
| Form factor |
19” / 2.5U rack mount (optional 0.5U filler plate available) |
| Size (with bumpers) |
L 51 cm x W 51.75 cm x H 12.07 cm L 20 in x W 20.38 in x H 4.75 in |
|
Weight (with internal high power attenuator) |
7 kg (15 lb) |
|
Power connector |
IEC 320 male |
|
Voltage |
100-240 VAC, 50/60 Hz |
|
Current (typical, with four 600 MHz DSPs) |
1.5 A rms at 115 VAC |
|
Operating temperature |
10°C to 35°C |
|
Operating humidity |
20% to 75% relative humidity, noncondensing |
|
Regulatory |
FCC, CE and RoHS compliant, Safety: EN61010-1, Emissions & immunity: EN61326-1 Class A |
RF |
|
| Connector |
Combined RF: N female Rx In / Tx Out: SMA female |
|
Impedance |
50 ohms nominal |
|
Receive frequency |
1626.5 to 1675.0 MHz |
|
Receive frequency step size |
1 Hz |
|
Receive level (Rx In) |
-35 to +16 dBm per channel +16 dBm max total |
|
Receive level (Combined RF) |
-34 to +17 dBm per channel +17 dBm max total |
|
Receive level (Combined RF, with optional high power attenuator) |
-4 to +43 dBm per channel +43 dBm max total |
|
Receive level measurement resolution |
0.01 dB |
|
Receive level measurement accuracy |
±1.0 dB |
|
Receiver spurious signals |
≤-55 dBc |
|
Receiver phase noise density |
@ 10 Hz: ≤-55 dBc/Hz @ 100 Hz: ≤-75 dBc/Hz @ 1 kHz: ≤-85 dBc/Hz @ 10 kHz: ≤-90 dBc/Hz @ 100 kHz: ≤-100 dBc/Hz |
|
Receiver 3rd order intermodulation |
≤-55 dBc (two carriers at 3 dB below maximum, receive path attenuation adjusted optimally) |
|
Receiver I/Q amplitude and phase imbalance |
Negligible |
|
Transmit frequency |
1518.0 to 1559.0 MHz |
|
Transmit frequency step size |
1 Hz |
|
Transmit level (Tx Out) |
-90 to -25 dBm per carrier |
|
Transmit level (Combined RF) |
-91 to -26 dBm per carrier |
|
Transmit level (Combined RF, with optional high-power attenuator) |
-121 to -56 dBm per carrier |
|
Transmit level resolution |
0.01 db |
|
Transmit level accuracy |
± 1.0 dB |
|
Transmit phase noise density |
@ 10 Hz: ≤-50 dBc/Hz @ 100 Hz: ≤-70 dBc/Hz @ 1 kHz: ≤-87 dBc/Hz @ 10 kHz: ≤-90 dBc/Hz @ 100 kHz: ≤-100 dBc/Hz |
|
Transmit spurious |
< -55 dBc or -90 dBm |
|
Transmit 3rd order intermodulation |
≤-55 dBc with two carriers at 3 dB below maximum |
|
Transmit frequency accuracy |
± 1 x 10-7 |
|
Transmit I/Q amplitude and phase imbalance |
Negligible |
Reference |
|
|
Source |
Internal / External |
|
Connector |
BNC female |
|
Impedance |
50 ohms |
|
Frequency |
10 MHz |
|
Level |
0 dBm ± 2 dB |
|
Frequency error |
≤10-7 (with yearly calibration) |
Baseband Interfaces |
|
| Sync |
TTL, configurable as input or output Input impedance: ≥ 1000 ohms Load impedance: ≥ 1000 ohms |
|
Ethernet |
2 x 10/100/1000 Base T |
|
Serial |
1 x RS-232, 1 x RS-232/422/485 |
| USB |
4 x USB 2.0, 2 x USB 3.0 |
| Video | VGA, DVI |
| Audio | Standard PC audio |
Processing |
|
| Host |
Core i7 |
|
DSPs |
4 to 8 TigerSHARC, 500/600 MHz |
|
FPGA |
Virtex-5, Kintex-7 |
The PTL-M implements the communication channels at L-band. Up to four transmit and four receive channels are supported. It communicates with an optional Protocol Tester or network emulator as well as external test equipment and the unit under test over a LAN or serial connection. The PLT-M includes a high stability 10 MHz frequency reference and provides a local or remote Windows-based Operator Interface.
4017 Carling Avenue, Suite 200
Ottawa, ON, Canada K2K 2A3
Tel + 1 613 271 0044
Fax+ 1 613 271 3007