Datum Systems PSM-500LT L-Band VSAT Satellite Modem
PSM-500LT provides BUC and LNB power from an integrated power supply
PSM500LT L-Band VSAT Satellite Modem
Datum Systems PSM-500LT L-Band Satellite Terminal combines the performance and reliability of our M500 Series modems with an integrated BUC Power Supply and High Stability 10 MHz reference. The PSM-500LT is the industry’s most versatile, reliable and efficient remote satellite modem. It is unmatched by any other modem for its BER performance, fast acquisition, low latency and total power/bandwidth optimization.
Advanced FlexLDPC
With unparalleled configuration flexibility and superior coding gain, FlexLDPC takes FEC technology innovation to the next level, bringing strong economic advantages to satellite service providers and their customers. Granular code rates and block sizes get you the most out of your available satellite bandwidth and spectral power, while keeping processing latency at the desired level.
Internal BUC/LNB Power & Reference
The PSM-500LT provides BUC and LNB power from an integrated power supply. A High Stability10 MHz reference is also provided through the modem Transmit (N-Type) and Receive (F-Type) connections at the rear. Reference, BUC and LNB power may be disabled via the front panel. Front panel voltage and current measurements are available for BUC and LNB monitoring.
SCPS - TCP/IP Acceleration
Datum Systems provides an embedded protocol acceleration option based on the Space Communication Transport Specification (SCPS-TP). Our integrated optimization software provides increases in IP packet throughput over TCP/IP links via our Ethernet IP interface option.
Feature Unlocks
The PSM-500LT can be easily upgraded via front panel key codes. Upgrades are simple to implement and are available in preconfigured software versions, offering a variety of options for modulation, FEC and data rates up to 29.5Mbps.
Redundancy
Built-in 1:1 redundancy comes standard on the PSM-500LT and supports BUC/LNB power and reference switching. It can be enabled through the front panel and requires only a few external cables and power splitters.
Demodulator
Rx Carrier Input Range: -20 to -70 dBm, scales to -101 dBm at lower rates
(minimum = 10 log(symbol rate) – 135 dBm)
IF Tx Impedance: 75Ω Type F -Connector
Return Loss: 10 dB minimum
Max Composite Input: - 5 dBm or +40 dBc, whichever is lower power
Input Phase Noise: Better than Intelsat by 6 dB typical, 4 dB min
Rx Acquisition Range: Programmable from ± 100 Hz to ± 1.25 MHz
Descrambler Types: IBS, V.35, IESS, TPC, RS, LDPC, EFD
Fast Receive Lock Performance
Example: FEC ½, EB/N0 = 6.0 dB, Acquisition Range of ± 30 kHz
• 315 ms at 9.6 kbps QPSK
• 175 ms at 9.6 kbps BPSK
• 71 ms at 64 kbps QPSK
Plesiochronous or Doppler Bu er Store
Receive Bu er Range: 4 bits to 524,280 bits, in 1 bit steps or delay time
Receive Clock Options: Internal, External, Mod Clock, Receive Clock
Terrestrial Interfaces
Standard Synchronous: Serial RS232, RS422, V.35, V.36, EIA-530(A)
Optional: HSSI
Ethernet IP 10/100 Base-T (Bridge & Router, QoS)
TCP/IP Acceleration (Software Only)
-Supports Up to 5 Mbps Aggregate throughput and 200 Continuous Sessions
Advaned Ethernet IP, GigE, High PPS Throughput, Vyatta Bridge/Router
Dual G.703/E1 (D&I), Dual Bal Inputs (RJ-45), UnBal (BNC) Opt
Full E1, PCM-30 (CAS), PCM-31 (CCS), N X 64, N = 1 to 31 Time Slots
Multiplexer and Overhead Features
IBS Multiplexer: Built-in IBS Overhead Channel with standard and
enhanced variable rate RS232 and RS485.
Supports Automatic Uplink Power Control (AUPC),
Remote Modem Control Interface and 2 Form-C Backward Alarms
Monitor and Control
Front Panel: LCD and Keyboard for easy control and status
Terminal Mode: Full screen interactive display of all parameters
Remote Packet Mode: Packet driven RS232/RS485 control and status
Optional Web Browser: Available through the Ethernet Interface SnIP
SNMP Available through the Ethernet Interface SnIP
Diagnostics
Loopback Modes: IF, bi-directional terr and sat data loopbacks
BER Test Pattern: 2047 or 2 23-1
BERT: Built-in bi-directional bit error rate test set
Carrier: Pure carrier and sideband
Form C Relays: Assignable faults to Form C rear alarm connector
Environmental and Physical
Prime Power Input: 90 to 264 VAC, 50/60 Hz, -48 VDC (HW Option), < 30 watts,
220 Watts Max fully loaded including internal BUC and LNB power
BUC Power Options: 24 VDC @ 160 Watts, 5A max w/PFC
48 VDC @ 160 Watts, 3.2A max w/PFC
LNB Output Power: Selectable: O , 13 or 18 VDC
Power Factor Correction: Optional at all power levels
Operating Conditions: 0 to 50°C, to 95% humidity, non-condensing
Storage Temperature: - 20 to +70° C, 99% humidity, non condensing
Size: Rack mount - 1 RU (19”W x 12”D x 1.75”H)
Weight: Approximately 7 lbs fully con gured
Certi cations and Compliance:
CE Certi ed for: EN55022 Class B (Emissions)
EN50082-1 Part 1 (Immunity)
Can/CSA C222 No. 950-95 (Safety)
UL-1950 (Safety)
RoHS Compliant: Meets RoHS lead-free standards
SCPC VSAT Networks, Dedicated Satellite Bandwidth delivery
