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P300H P300 Series Modem Installation and Operating Handbook Page 23
4 SUMMARY OF SPECIFICATIONS
Common Main Specifications
Optional features are shown in [square brackets]
Modulation BPSK, QPSK, OQPSK, [8PSK]
Frequency/Resolution P300: 50 MHz - 90 MHz, 100Hz resolution.
[50 MHz - 180 MHz Wideband IF feature]
P310: 950MHz - 1750MHz 100Hz resolution
[950 MHz - 2150 MHz Wideband IF feature]
Traffic Interface
Electrical RS422, V.35 and RS232 software selectable (clocking can provide X.21
DCE or DTE mode)
Mechanical Both EIA530 DCE and RS449 DCE connectors (25 pin and 37 pin `D`
female respectively).
Options T1 or E1 G.703 in addition to RS422, V.35, & RS232 (software
selectable)
For special requirements a customer specific interface card may be fitted.
User Data Rates
Closed Network Resolution of 1 bps
Rate ½ Rate ¾ Rate
Uncoded Rate
BPSK
min 4.8k 7.2k 8.4k 9.6k
max * 1250k 1875k 2187k 2500k
QPSK / OQPSK
min 9.6k 14.4k 16.8k 19.2k
mix * 2.5M 3.75M 4.375M 5.0M
[8PSK/TCM]
min 19.2k
mix * 5.0M
[Closed Net plus ESC] As Closed Net above but limits include an overhead of approx 1.4 x ESC
Baud rate. Resolution of 1 bps. ESC from 50Baud to 38.4kBaud
[IBS/SMS Mode] <9.6k to >2048k (6.7% overhead added)
*
Resolution of 1 bps
[IDR Mode] <64k to >2048k (96k overhead added)
*
Resolution of 8k (limitation of frame structure)
* Note: Maximum data rate is 512kbps in all modes before overheads unless the High
Data Rate option is fitted.
Forward Error [Turbo Product Codec (TPC), Preset rates inc rate ½, ¾,
, & 0.789]
Correction [TCM rate
to IESS 310]