Lanex TM-78 Operating manual - 4. I
10Base-T/100Base-TX/E1 converter
Operating Manual
_______________________________________________________________________________
IOA78-1C 12 January 2005
4. I
NSTALLATION
& O
PERATION
4.1. Introduction
Proper installation and configuration of the device in accordance with guidelines contained in
the following sections of this manual is required before commencement of operation.
4.2. Working conditions
The converter may work in continuous mode indoors, in conditions specified in Technical
Data. It should not be exposed to direct sunlight. The device should not be placed on heat sources,
although it may be put on another device of the same type or on a rack with other operating
devices. In this latter case, free air circulation or forced ventilation when necessary should be
provided.
4.3. Power Supply
The converter is supplied with the following voltage: 4.5 – 5.5 VAC. Supply voltage with
proper polarization must be provided. The converter is supplied with 4,5
÷5,5 VDC, maintaining
polarization on the supply connection. Power supply should be connected to the jack with external
bolted clamps. Polarity of supply voltage is described on the rear plate Figure 2-2.
Earth should be connected to the earthing clamp on the housing. The earthing wire should
be of low impedance type for high frequencies.
Proper power supply is signaled with a green LED lit on the front panel of the device.
A Mascot power supply unit type 5015, 230VAC/4,5VDC is recommended for supplying 230
VAC from the power network, with marked polarization cable. Grey, white or red color on one of
the cores means „
+
”, all black core means „
-
”.
Optionally, ECD1-R2-48s05 type power supply by Merawex can be used, which enables
supplying the converter from 48 VDC. The power supply unit can be mounted to the DIN rail or
to a flat area with a velcro. The power supply unit is equipped with clamped connections. To
attach a cable, insert a screwdriver in one of the openings, causing the clamps to open, then insert
a cable in the other opening and remove the screwdriver. Properly fixed cable should not slip
away from the connector. Polarity of the +48 V input voltage and +5 V output voltage is described
on the housing. Connect „
+
” of the power supply unit with „
+
” of the converter and „
-
” with „
-
”.
The scope of delivery contains two-core cable with polarity marking for simple connection of
power supply, one core being red and black, the other being black.
The manufacturer guarantees conformity with safety and electromagnetic compatibility
standards for operation with such power supply units.
!
The device is not provided with an integrated tripping system. Therefore, an easily
available tripping system should be mounted in fixed cabling.