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- Serial Data—Attach data equipment to the front panel COM1 and/or COM2
ports. The unit is hardwired as a DCE device (DB9-F to RJ-45 connector, GE
MDS part no. 73-2434A25).
- Ethernet LAN—Attach data equipment to the ETH1 and/or ETH2 port. The
auto-sensing MDIX feature allows either a straight-through or crossover cable to
be used.
Where applicable in the steps that follow, secure all cable connections with the locking
screws provided.
5. Connect Primary Power—The Master Station is powered using one or two power
supply modules that work in tandem. The modules may be AC, DC, or a combination of
both. The following tables list each type and key operating parameters.
All DC power supply modules have chassis isolated inputs and a diode bridge for floating
ground, positive ground, or negative ground installations. These modules include a keyed
power connector with screw-terminals. Strip the wire leads to 6mm (1/4 inch) and insert
them into the wire ports provided. Be sure to observe the polarity shown below. Tighten the
binding screws securely and insert the connector into the module. For compliance with
CSA, torque thumbscrews to 10in-lbs.
MDS 05-6399A01, Rev. F
Table 4-1. AC Power Supply Module
Module
Input Power
6755
100-220 VAC, 50/60 Hz
Table 4-2. DC Power Supply Modules
Module
Input Power
6843
+/- 12-36 VDC
6844
+/- 36-75 VDC
6845
+/- 75-140 VDC
MDS™ Master Station
Current Rating
120W Max.
Current Rating
10 A Max.
3.5 A Max.
2 A Max.
25
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