4.5 TECHNICAL SPECIFICATIONS
Application
Multiple Sync/Async DCE/DTE devices operating
in a polled or contention environment, to share one
DCE/DTE port
Capacity
Main Input: One RS-232 Port
Subchannel Ports: One to Four RS-232
Sync/Async devices
Interface
EIA RS-232-D, CCITT V.24 using DB-25 female
connectors
,
selectable as DCE or DTE interface
Data Rates
Internal Select: 450bps to 76.8Kbps
External
:
Up to 128Kbps
Data Format
Data transparent at all data rates
Timing
Options
Internal
External: via Input Master Port
External: Telco Timing via Port 1
Anti-Streaming
Automatic: Selectable timeout intervals
Disable: Selectable via dip switch
Terminal Service Modes
Sequential scanning for RTS or DCD control
signal
,
option for switch on RXD Data(JP6-JP9)
Clear To Send
Allows normal RTS/CTS handshaking or has
option for Forced CTS on Ports 1-4 (JP1-JP4)
RTS To CTS Delay
Selectable
RTS to CTS delays
of 0, 5, 10 and 20ms
Front Panel
Indicators: Power, Transmit Data, Receive Data,
Channel Active, Channel Stream
Switches: Enable/Disable of each Sub-channel
Power Source
DC Voltage, Input Range of 36 to 72vdc
Current Draw at 48vdc: 75ma @ 3.6watts
Safety Approvals
C-UL 60950, CE Safety EN60950 and CE EMC
EN300-386-2
Environmental
Operating Temperature
:
32º to 122º F (0ºto 50º C)
Relative Humidity
:
5 to 95% Non-Condensing
Altitude:
0 to 10,000 feet
Dimensions
DMM-4DC
Height: 1.75 inches (4.44 cm)
Width: 17.00 inches (43.18 cm)
Length: 9.00 inches (22.86 cm)
Weight
4
.5 pounds (2.1Kg)
Warranty
Three Years, Return To Factory
ORDERING INFORMATION
Part Number: 162000
Model: DMM-4DC
Description: RS-232 Digital Mixing Module
INCLUDED WITH EACH UNIT:
1) Operations Manual
2) Rackmount Kit
OPTIONAL ACCESSORIES
315ma Fuse, Qty (2) Part # 714004
DMM-4DC OPERATIONS MANUAL
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