DSE DSE2157 Manual de instrucciones de instalación - Página 7
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3 SPECIFICATIONS
3.1 PART NUMBERING
Product type
DSE 2157
input
expansion
module
At the time of this document production, there are no variants of this product and there have been no
revisions of the module hardware.
3.1 POWER SUPPLY
Minimum supply voltage
Cranking dropouts
Maximum supply voltage
Maximum operating
current
Maximum standby current
3.2 DSENET®
DSEnet is the interconnection cable between the host controller and the expansion module(s) and
must not be connect to any device other than DSE equipment designed for connection to the DSEnet.
Cable type
Cable characteristic impedance
Recommended cable
Maximum cable length
DSEnet topology
DSEnet termination
Maximum expansion modules
NOTE : As a termination resistor is internally fitted to the host controller, the host controller
must be the 'first' unit on the DSEnet. A termination resistor MUST be fitted to the 'last' unit on
the DSEnet. For further details, please see the section entitled 'typical wiring diagram'
elsewhere in this document.
DSE2157 relay output expansion module
2157
-
2157
8V continuous, 4V for up to 5 minutes.
Able to survive 0V for 50mS providing the supply was at least 10V before
the dropout and recovers to 5 volts afterwards.
35V continuous (protection to 60V)
325mA at 12V, 152mA at 24V
Conditions: All relays energised.
70mA at 12V, 32mA at 24V
Conditions: All relays de-energised.
Two core screened twisted pair
120Ω
Belden 9841
Belden 9271
1000m (1km) when using Belden 9841 or direct equivalent.
500m (0.5km) when using Belden 9271 or direct equivalent.
Bus with no stubs (spurs)
120Ω. Fitted internally to host controller. Must be fitted externally
to the 'last' expansion module by the customer .
Refer to host controller documentation
057-083 Issue 1 DSE2157 relay output expansion operator manual
001
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00
Variant
Standard
product
Hardware revision
Revision 1
00
001
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