PSD-4 AND PSD-8
4
1. Specifications
Number of Sub-Channels —
PSD-4: 4
PSD-8: 8
Channel Configuration —
Lowest Priority: Sub-channel 1
Highest Priority: PSD-4: Sub-channel 4
PSD-8: Sub-channel 8
Sub-Channel Selection — RTS/DCD on or data transitions (strap-selectable)
Sub-Channel Deselection — RTS/DCD off or 16 bits of idle data (strap-selectable)
Sub-Channel Dialing —
Manual: Press in the front-panel pushbutton switch
Automatic: If a sub-channel stays connected for more than a pre-set period of time
(strap-selectable—1.7, 13.5, or 108), the PSD automatically disables it
Clock Source — Internal, external from main channel, or external from sub-channel 1
Data Rates —
Asynchronous: Up to 19.2 kbps
Synchronous: Internal Clock: 1.2, 2.4, 4.8, 7.2, 9.6, 14.4, or 19.2 kbps
External Clock: Up to 19.2 kbps
Connectors — IEIA RS-232-C/CCITT V.24; DCE or DTE (strap-selectable)
Controls — Front-panel SUB-CHANNEL DISABLE pushbutton switch for each sub-channel; rear-panel
POWER rocker switch; rear-panel 110/220 VAC selector
LED Indicators — POWER: Lights when the unit is receiving AC power
DATA: Lights when data is broadcast from the main channel
to the sub-channels
ACTIVITY: Lights when the sub-channel accesses the main channel
AUTOMATIC: Lights when sub-channel has been automatically disabled
Temperature — 32 to 122°F (0 to 50°C)
Humidity — 30 to 90%, non-condensing
Power — 110/220 VAC switchable +10%
Size — I1.7"H x 17"W x 8.2"D (4.3 x 43.1 x 20.8 cm)
Weight — 4.4 lb (2.0 kg)