FEC AFC1500 - Manual (Page 72)

Chapter 4: System Setup and Wiring
Page 4-28
4.8 RS-485 Data communication ports.
The internal AFC1500 system communication is performed via RS-485 communications
ports. These ports are linked together by means of daisy-chaining from one spindle to the
next. The two connectors provided on the front of each SAN Unit are internally connected
and can be connected, between units, in any order.
Each connector carries two channels of RS-485. One channel is used for external commu-
nication to the AFC 1500 User Console Computer (CH1). The other channel is used for high
speed communication from spindle to spindle (CH2).
RS-485 Connection
PIN
SIGNAL NAME
1 TX+/RX+ (CH2)
2 TX-/RX- (CH2)
3 RX+ (CH1)
4 TX- (CH1)
5 TX+(CH1)
6 RX- (CH1)
7 GND
8 GND
Mating Connector: RJ45 Modular
FIG. 4.8 RS-485 port connectors diagram.
Note: Cabling length should be kept to a minimum to reduce the affect of electrical noise.
Additionally, care should be taken to avoid routing cables near high signal noise areas such
as AC Motor invertors, speed controllers or strong RF signals.
Standard CAT 5 or CAT 5e Ethernet cables can be used for this connection.
WARNING:
DO NOT connect the AFC1500 system RS-485 communications port to an Ethernet
Network or circuit damage may occur!
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