10
Required Equipment (RS-485)
Either an RS-485 Card, such as B&B Electronics “MIPORT”
Isolated PCI Multi-Output Card (model #3PCIOU1), or an
RS-485 Adapter (B&B Model USPTL-4) capable of running in
full duplex mode is required for setting up an RS-485 system.
Connectors: The DXD is supplied with either Switchcraft or
Cannon connectors as specified at time of purchase. The pin
identification and assignments are shown in Tables 4 and 5.
Table 4. Switchcraft EN3 Pin Assignments for RS-485
Configuration
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 3
PIN 8
PIN 1 INDEX
1
2
3
4
5
6
7
8
+5V (OUT)
SUPPLY (+)
TXD+
TXD–
RXD+
RXD–
SUPPLY COMMON
N/A
*PIN FUNCTION FOR
RS-485 APPLICATION
“SWITCHCRAFT”
CONNECTOR PIN
I.D.
SECTION 5.4
WIRING INSTALLATION FOR
RS-485 SYSTEMS (CONT.)