Specifications

22 - Hardware Installation DeviceMaster Installation and Configuration Guide: 2000506 Rev. B
2-Port (DB9) 1E/2E Models
2-Port (DB9) 1E/2E Models
Use the following procedure to install DeviceMaster 2-port models with DB9 connectors.
1. Record the MAC address and serial number of the DeviceMaster unit on the customer
service label provided.
You may need the MAC address during driver configuration. The MAC address (starts
with 00 C0 4E) and serial number are located on a label on the DeviceMaster.
2. Attach the DeviceMaster 2-Port to the DIN rail adapter.
3. Connect the power supply and apply power to the DeviceMaster using the power
supply specifications on the product label and the following information.
Observe proper ESD techniques when connecting and disconnecting the DeviceMaster.
a. Insert the earth ground wire into the chassis ground screw terminal.
Note: The chassis ground connection is made only if the DIN rail is NOT
connected to earth ground.
b. Insert the DC positive wire into one of the + screw terminals and the DC return
wire into the - screw terminal.
A second redundant power supply can be connected to the unit by inserting the
DC positive wire into the other + screw terminal and the DC return wire into the
- screw terminal.
The DeviceMaster will
continue to operate if one of
the two connected power
supplies should fail.
If you purchased the Comtrol
power supply (separately),
the wires are identified
below:
• Red = 6-30VDC positive
• White = 6-30VDC return
• Black = chassis ground
If you did not purchase a
power supply from Comtrol
for the DeviceMaster, see 2-
Port (DB9) Power Supply on
Page 88 for power
requirements.
c. Use a small flat head screw driver to lock the wires into place.
d. Verify that each wire has been tightened securely.
e. Connect the power supply to a power source.
Note: Do not connect multiple units until you have changed the default IP address, see
Initial Configuration
on Page 33.
Caution
PW1 PW2
Return†
Positive†Positive†
Chassis
Ground†
† Wire gauge: AWG 12-22
6-30VDC