Rockwell Automation 1770 DH,DHII,DH485 CABLE - Manual (Page 21)

Planning a Data Highway or Data Highway Plus
Cable System
Chapter 2
2-5
The following sections describe the two types of station connectors in
more detail.
1770-SC Station Connector
The 1770-SC station connector can be used on either a DH or DH+
network and can be used instead of the 1770-XG connector kit (described
later in this chapter).
You need one 1770-SC station connector for each node you want to
connect to the network.
Each station connector connects one dropline to the trunkline and contains
the following components:
a junction box with a removable cover
a terminal block wired with the following:
- 0.05 mfd 500V DC capacitor (terminals 4 and 5)
- jumper (terminals 7 and 9)
- ground wire (terminal 10)
- earth ground wire with lug
a packet containing the following:
- D-shell cable connector hood
- 15-socket female connector
- packet of assembly hardware for the cable connector
- terminator resistor (150 ohm, 1/4 watt)
- shrink tubing
- cable clamp plug
installation instructions
For information on installing a 1770-SC station connector, refer
to Chapter 3.