USER MANUAL, MSD-4, PT# 101012
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5
EAST COAST DATACOM, INC.
3.3
POWER
CONNECTION
Before connecting the MSD-4 to an AC power source the top cover should be installed with the
supplied #4-40 screws. AC power is supplied to the MSD-4 via the supplied power cord
terminated by a grounded 3-prong plug. Select an appropriate location accessible to and within
four to five feet of an AC outlet. The AC Power source MUST be grounded.
3.4
INTERNAL
DIP
SWITCH
AND
PIN
‐
HEADER
SETTINGS
Remove the power to set the dip switch and jumper settings.
3.4.1
SW1
Dip
Switch
Settings
The following options are supported on SW1 Dip Switch
3.4.1.2
Anti
‐
Streaming
(SW1
‐
4)
Anti
‐
Streaming
is set with Dip Switches
SW1
1
‐
4
as shown in the chart below.
To Disable
Anti
‐
Streaming,
set dip switches
SW1,
1
‐
4
all to the OFF position.
Anti
‐
Streaming
Time
‐
out
SW
‐
1
SW
‐
2
SW
‐
3
SW
‐
4
Time
(Sec)
OFF
OFF
OFF
ON
0.02
ON
OFF
OFF
ON
0.04
OFF
ON
OFF
ON
0.08
ON
ON
OFF
ON
0.3
OFF
OFF
ON
ON
1
ON
OFF
ON
ON
5
OFF
ON
ON
ON
20
ON
ON
ON
ON
40
OFF
OFF
OFF
OFF
Disabled
3.4.2.2
Channel
Service
Modes
(SW1
‐
5)
Dip Switch position
SW1
‐
5
provides the sub-channel service modes of operation. The ON
position provides
SEQUENTIAL
SCANNING
. The OFF position provides the
PRIORITY
MODE
, with
sub-channel 1 having the highest priority over all other attached Sub-channels.
3.4.2.3
Frame
to
Signal
Ground
(SW1
‐
6)
Dip Switch position
SW1
‐
6
provides the following functions:
ON (or up) RS-232 DB-25 Pin # 1, (Frame Ground) Connected to Pin # 7, (Signal Ground).
OFF (or down) RS-232 DB-25 Pin # 1, (Frame Ground) Not Connected Pin # 7, (Signal Ground).
