H-1,H-2,H-5 Short haul modems

H-1, H-2, H-5 SHORT-HAUL MODEMS
V.24
H1
M-1 MODEM
V.24
H2
20 mA
H5
M-1 MODEM
RS485
24V DC (all)
• Installation by means of assembly base on the
35 mm DIN rail
• Connections on assembly base
• 24V DC operating voltage
• TTY, RS485, V.24 and M-1 modem interfaces
• 0-100,000 bit/s, asynchronous
• Transient protection
• RS485 direction detection: transmitting/ receiving
• 4-wire repeater for RS485
• Simple installation
Hedin Tex modems are suitable for assembly on a
35 mm DIN rail (protective rail). The modems are
mounted on the DIN rail by means of an assembly
base or foot, consisting of a retaining device for the
rail and a screw terminal strip for the interface connections. The modems are placed directly on the
assembly base whereby automatic contact with the
connections is established. This assembly base guarantees simple installation or the possibility of changing a unit.
All interfaces are directly accessible via the terminal strip without plug-in bridges/jumpers. The operating voltage is 24V DC, and the modems support
transfer speeds of up to 100,00 bits/s. They have
duplex, half duplex and simplex facilities. The range
of the M-1 modem interface is up to 21 km. That
of the current loop up to 6 km and the transfer distance of the RS 485 is up to 1000 m. The signal
status is displayed by means of LED’s (Power, RD,
TD and DCD) on the front panel. The short-distance
modems are code-transparent, i.e. they are completely independent of the data structure and the
protocols during transmission.
The transient protection in the modems provide
adequate safety in the event of lightning and over-
voltages, and the galvanic insulation of the modem
and converter connections provide protection where
there are potential differences. This protects not
only the devices but also the connected, and more
expensive terminal devices.
H-1: is the short-haul modem corresponding to M-1,
with a V.24/RS232 and an M-1 modem interface. The
maximum transfer speed is 100,000 bits/s, and the
transfer distance is up to 21 km. The modem has the
same functions as M-1.
H-2: This converter converts, in full duplex up to
19.200 bits/s, the current loop (20 mA current loop,
TTY) to a V.24/RS232. The transmitter and receiver
are present as separately active and passive connections on the screw terminals, and the converter has
the same functions as M-2/R-2.
H-5: This short-distance modem enables the RS485
to be converted to the V.24 or M-1 modem interface,
with transfer speeds of up to 100,000 bits/s. The
modem has the same functions as M-5.
The Hedin Tex products H-1, H-2 and H-5 have short
deliveries, and your Hedin Tex contact will be glad
to provide you with information and is available to
answer your questions at all times.
Examples of applications
RS485 network up to 1200 m
V.24
H-2
SPS
20 mA current loop
V.24
H-5
M-1 Modem
up to 21 km
H-5
H-1
M-1 Modem
up to 21 km
H-1
RS485 network
up to 1200 m
V.24
Technical data H-1, H-2, H-5
Data transfer:
Asynchronous; full-, half duplex or
simplex
EIA RS232 and CCITT V.24/V.28 and
10 mA tristate current loop (M-1)
EIA RS232 and CCITT V.24/V.28 and
20 mA current loop. Setting active or
passive. Receiver current 30 mA max.
Transmitter 27V max. and 30 mA max.
EIA RS232 and CCITT V.24/V.28:
10 mA tristate current loop (M-1) and
EIA RS485 (2-wire)
All via DIN 41612 connector or 35 mm
DIN rail assembly base with screw
terminals.
0-100,000 bits/s, depending on interface; code transparent
Galvanic insulation of the data transfer
by optocouplers. (M-1 interface and
current loop)
H-1 interfaces:
H-2 interfaces:
H-5 interfaces:
Connections:
Transmission speed:
Insulation:
Insulation voltage:
M-1 interface: 420 Vrms
Current loop: 420 Vrms
Transient protection: Suppressor diodes and varistors
Supply voltage:
24V DC + 10%
Other voltages on request
Current consumption: H-1: 85 mA
H-2: 150 mA
H-5: 70 mA
LED displays:
Network, TD, RD and DCD
Temperature range:
5-50°C ambient temperature
Humidity range:
0-95% relative humidity
Dimensions in mm:
47 x 129 x 134 (WxHxD), assembly
base excluded
Assembly base: 75 x 100 x 25 (WxHxD)
Weight:
0.6 kg
Casing material:
Plastic ABS, black, aluminium back
Assembly:
By assembly base on 35 mm
DIN mounting rail (EN50022)
Conformity:
CE
Terminal strip
The terminal strip is the same for all dev ices. Only the corresponding functions of the connections are supported.
Connection X3
1
2
3
4
Connection X2
5
6
7
8
9
10
11
12
13
14
15
Connection X3
Supply
connection
not connected
Transmitter TTransmitter T+
Receiv er RReceiv er R+
PE
Connection H-2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
26
25
24
23
22
21
20
19
18
17
16
Signal ground
26
25
24
23
22
21
20
19
18
17
16
30
29
28
27
24V +
Earth and signal ground
PE-connection
PE-connection
30
29
28
27
Constant +12V
V.24 status in
V.24 status out
V.24 data out (RD)
V.24 data in (TD)
not connected
Connection H-5
1
2
3
4
not connected
PE
5 RS485 B
6 RS485 A
7
8
9
10
11
12
13
14
15 PE
Constant +12V
V.24 data out (RD)
V.24 data in (TD)
Signal ground
26
25
24
23
22
21
20
19
18
17
16
Constant +12V
V.24 status in
V.24 status out
V.24 data out (RD)
V.24 data in (TD)
Transmitter TTransmitter T+
Receiv er RReceiv er R+
Signal ground
24V +
Earth and signal ground
PE-connection
PE-connection
30
29
28
27
24V +
Earth and signal ground
PE-connection
PE-connection
20mA current generator out
Transmitter passiv e I+
Transmitter passiv e I20 mA current generator in
20mA current generator out
Receiv er passiv e I+
Receiv er passiv e I20 mA current generator in
Other model versions
H-4:
LH-1V:
LH-4V:
LH-2:
24V DC DIN mounting rail model of the M-4 interface converter
Voltage divider for DIN mounting rail
RS485 voltage divider for DIN mounting rail
RS485 repeater for DIN mounting rail
www.hedintex.se
Hedin Tex GmbH Am Herrkamp 14 D-24226 Heikendorf GERMANY Tel +49-431-24 35 91 Fax +49-431-24 57 20
September 1999. We reserve the right to make technical modications. ED991230
Connection H-1