DSE DSE890 - Rs485 Connector; Ethernet Connector

Specifications
057-165 ISSUE: 9.0
Page 12 of 53
2.10 RS485 CONNECTOR
This socket provides support for connection to a maximum of 5 (five) DSE controllers in a daisy chain
RS485 network.
Ensure termination resistors (120 ) are fitted as shown to the ends of the link as per RS485
standard.
Pin No
Notes
A (-)
Two core screened twisted pair cable.
120 impedance suitable for RS485 use.
Recommended cable type - Belden 9841
Max distance 1200m (1.2km) when using Belden 9841 or direct equivalent.
B (+)
SCR
2.11 ETHERNET CONNECTOR
The DSEGateway
®
module is fitted with an autosensing ethernet socket.
This can be utilised in a number of ways. See section entitled Typical Connection to DSE controllers,
subsection Via Ethernet for further details.
10baseT/100baseT
Pin
Connection 1 (T568A)
Connection 2 (T568A)
1
white/green stripe
white/green stripe
2
green solid
green solid
3
white/orange
stripe
white/orange
stripe
4
blue solid
blue solid
5
white/blue stripe
white/blue stripe
6
orange solid
orange solid
7
white/brown stripe
white/brown stripe
8
brown solid
brown solid
NOTE:DSE Stock a 2m (2yds) Ethernet Cable – Part number 016-137. Alternatively they
can be purchased from any PC or IT store.
As the Gateway is autosensing, either a ‘straight through’ or ‘crossover’ cable can be used.
The diagram above shows a ‘straight though’ cable.
For the advanced
Engineer, this cable
has both ends
terminated as T568A
(as shown below) or
T568B.