| The H-5H asynchronous short-haul modem converts
the RS485/RS422 to a modem interface. A PROFIBUS,
MOD bus and many other field bus systems may then
be transferred by means of an efficient modem interface
over greater distances of up to 21 km without
interference problems.
The RS422/RS485 data are transmitted by a symmetrical
10 mA tristate current loop, the devices
being galvanically insulated by insulated receivers.
The information contents and protocols are not in.uenced
by the transmission, the short device running
times and the galvanic insulation. The rapid transfer
behaviour is guaranteed by a 4-wire connection
between the devices.
The modem interface is compatible with the standard
M-1 modem interface, the H-5H being provided
with a new M-1 modem receiver for transferring data
up to 12 km at a speed of 9600 bits/s. The transient
protection in the H-5H provides effective protection
against lightning and overvoltages, and the galvanic
insulation provides protection if there are potential
differences.
The H-5H is designed for 35 mm DIN mounting rail
assembly and operates at an operating voltage of
24V DC. The short-haul modem is mounted on to the
mounting rail by means of an assembly base, consisting
of a retaining device for the rail and a screw terminal
strip for the interface connections and supply
voltage. The modem is plugged directly on to the
assembly base, the contact with the connections
being made automatically. This assembly base guarantees
simple installation or replacement of devices.
The signal status is displayed on the front panel by
means of LED’s (Power, TD, RD and DCD).
The H-5H short-haul modem meets the most stringent
requirements regarding reliability, performance
and operation. The device is installed without problem
due to the simple configuration of the interfaces.
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| RS422/RS485 interface extension |
| Conversion of the RS422/RS485 to M-1 modem |
| Suppressed M-1 modem data transfer |
| Long transfer range |
| RS485 direction detection: transmitting/receiving |
| Galvanic insulation, transient protection |
| 0-100,000 bits/s, asynchronous |
| DIN mounting rail assembly |
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| Technical data H-5H |
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| Data transfer:
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Asynchronous; full-, half duplex or simplex
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| Interface X1:
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M-1 compatible interface
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| 10mA Tristate Stromschleife
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| Interface X2:
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EIA RS485, V.11, RS-422;
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| 2-wire or 4-wire transfer.
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| Connections:
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All via DIN 41612 connector or 35 mm DIN mounting rail assembly base with screw terminals
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| Transfer speed:
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0-100 kbits/s, code-transparent
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| Insulation:
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Galvanic insulation of the data transfer by optocouplers at the M-1 interface
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| Insulation voltage:
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M-1 interface: 420 Vrms
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| Transient protection:
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Suppressor diodes and varistors
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| Supply voltage:
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24V DC + 10%
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| Other voltages on request
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| Current consumption:
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150 mA maximum at 24V DC
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| LED displays:
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Network, TD, RD and DCD
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| Temperature range:
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5-50°C ambient temperature
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| Humidity range:
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0-95% relative humidity
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| Dimensions in mm:
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47 x 129 x 135 (WxHxD), assembly base excluded
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| Assembly base: 75 x 100 x 25 (WxHxD)
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| Casing material:
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Plastic ABS, black
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| Rückseite Aluminiumblech
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| Weight:
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0,25kg
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| assembly base, add 0.1 kg
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| Assembly:
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By assembly base on 35 mm DIN mounting rail (EN 50022)
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| Conformity:
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CE
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| Settings
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| Power termination of the RS422/RS485 interface |
| Mode of operation of interface X2 (RS422 or RS485) |
| RS422/RS485 transmitter control |
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| Modem connection X1
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| RS422/RS485 connection X2
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| Range of modem interface
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| Range of the RS422/RS485 interface
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| Maximum transmission distance: 0-1200 m at 0-100 kbits/s. Use pair twisted, unscreened cables. The transfer characteristics deteriorate as the capacitance increases and the cable cross-section is reduced. Use screened cables in heavy interference environment but consider that higher capacitances reduce the transmission distance.
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| Other model versions
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| M-5:
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Table model with standard M-1 modem interface and RS485
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| M-5E:
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Table model with standard M-1 modem interface and RS485/RS422
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| R-5:
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M-5 in European card format for assembly support RV-1
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| H-5:
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M-5 for 35 mm DIN mounting rail
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