User Manual

78 MDS entraNET 900 System Guide (Preliminary) MDS 05-4055A01, Rev. A
3.3 STEP 2—MEASURE & CONNECT
THE PRIMARY POWER
The primary power at the transceiver’s power connector must be within
10.5–30 Vdc and be capable of continuously providing a minimum of 8
Watts. (Typical power consumptions are: 760 mA @ 10.5 Vdc, 580 mA
@ 13.8 Vdc, and 267 mA @ 30 Vdc.) A power connector with
screw-terminals is provided with each unit. Strip the wire leads to 6 mm
(0.25"). Be sure to observe proper polarity as shown in Figure 3-2 with
the positive lead (+) on the left.
NOTE: It will take about 30 seconds for the transceiver to power up
and be ready for operation.
Invisible place holder
Figure 3-2. Power Connector, Polarity: Left +, Right –
The transceiver must be used only with nega-
tive-ground systems. Make sure the polarity of the
power source is correct. The unit is protected from
reverse polarity by an internal diode and fuse.
3.4 STEP 3—CONNECT PC TO THE
MDS TRANSCEIVER
Connect a PC’s Ethernet port to the LAN port using an Ethernet cross-
over cable. The
LAN LED should light. Alternately, you can use a serial
cable to connect to the
COM1 port. (Figure 3-3 on Page 81)
Wire Ports
Lead
Screws (2)
Binding
CAUTION
POSSIBLE
EQUIPMENT