Datum PSM-500 IF VSAT/SCPC Satellite Modem

Datum Systems PSM-500 IF Satellite Modem

The Datum Systems PSM-500 is a high-performance IF satellite modem operating at 70/140 MHz, designed for professional SCPC and point-to-multipoint SATCOM networks. Known for exceptional BER performance, fast acquisition, and ultra-low latency, the PSM-500 supports data rates up to 29.5 Mbps using advanced FlexLDPC coding. It offers extensive modulation and FEC options, backward compatibility with the legacy PSM-4900 series, and flexible configuration for hub, gateway, and remote terminal applications.

IF Frequency (Tx): 50–90 MHz or 100–180 MHz
IF Frequency (Rx): 70 / 140 MHz
Data Rate Range: 1.2 kbps to 29.5 Mbps
Symbol Rate: 2.4 ksps to 14.76 Msps
Modulation: BPSK, QPSK, OQPSK, 8PSK, 8QAM, 16QAM
FEC: FlexLDPC, TPC, Viterbi, Trellis, Reed Solomon
Tx Output Level: +5 to –35 dBm (0.1 dB steps)
Rx Input Level: –20 to –60 dBm (scales to –84 dBm at lower rates)
Acquisition Time: typ. 71 ms at 64 kbps QPSK
Latency: <15 ms at 64 kbps ¾ QPSK
10 MHz Reference: External reference input supported (1 / 2 / 5 / 10 MHz)
Clock Stability: TCXO standard, external reference optional
Interfaces: RS232, RS422, V.35, V.36, EIA-530(A), Ethernet IP, Dual G.703/E1
Ethernet Features: Bridge & Router modes, QoS, optional SCPS TCP/IP acceleration
Redundancy: External redundancy supported; 1:1 available on PSM-500LT variant
Operating Temperature: 0 °C to +50 °C
Storage Temperature: –20 °C to +70 °C
Form Factor: 1RU, 19-inch rack mount
Dimensions: 19 × 12 × 1.75 in
Weight: typ. 7 lb fully configured
Compliance: CE, UL-1950, CSA, RoHS