Patton electronic 1050patton - Manual (Page 5)

4.1.2 TWISTED PAIR CONNECTION USING RJ-11
If your two-pair cable is terminated in an RJ-11 plug, you may use
the RJ-11 jack in the back of the Model 1050 to make the connection.
The RJ-11 jack on a Model 1050 series Short Range Modem is
prewired for a standard TELCO wiring environment. To be sure you
have the right wiring, use the diagram below as a guide.
RJ-11 SIGNAL
1 ---------------------GND †
2 ---------------------RCV-
3 ---------------------XMT+
4 ---------------------XMT-
5 ---------------------RCV+
6 ---------------------GND
†
For proper signal crossing between two Model 1050s using RJ-11
connectors, pin-out the twisted pair cable according to the diagram
below.
RJ-11 Cable (4-Wire)
SIGNAL PIN# PIN# SIGNAL
GND † 1-----------------------6 GND †
RCV- 2-----------------------4 XMT-
XMT+ 3-----------------------5 RCV+
XMT- 4-----------------------2 RCV-
RCV+ 5-----------------------3 XMT+
GND † 6-----------------------1 GND †
† Connection to ground is optional
4.2 WIRING FOR MULTIPOINT CIRCUITS
The Model 1050 supports multi-point applications using either a
star or daisy chain topology. Both topologies require special wiring, as
well as specific carrier control strap settings for master and slave units.
4.2.1 DAISY CHAIN TOPOLOGY
Using a daisy chain topology, you may connect as many as 10
Model 1050s together in a master/slave arrangement. Maximum
distance between the units will vary based upon the number of drops,
data rate, wire gauge, etc. Call Patton Technical Support for specific
distance estimates.
Figure 3 (below) shows how to wire the two-pair cables properly for
a Model 1050 daisy chain topology. Note that the ground connection is
not needed.
In a multipoint topology, you must configure the master Model
1050's carrier control strap differently than those of the slave Model
1050(s). Here are the proper carrier control strap settings for a daisy
chain topology:
Function Carrier Control Strap Setting
Master Carrier “Constantly ON” (pegs 2 & 3)
Slave(s) Carrier “Controlled by RTS” (pegs 1 & 2)
7 8
HOST FIRST SLAVE OTHER SLAVE(S)
XMT+ RCV+ RCV+
XMT- RCV- RCV-
RCV+ XMT+ XMT+
RCV- XMT- XMT-
Figure 3. Model 1060 daisy chain wiring
1
2
3
4
5
6