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 swit 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)