Rice Lake Condec UMC600 - Manual (Page 12)

Installation and Wiring 9
2.11 Serial Port Wiring
The UMC600 has two serial communications ports.
Port 1 supports full-duplex RS-232, or 20mA current loop (active or passive), or half-duplex RS-485. Switch S1
(shown in Figure 2-12), selects the interface protocol of Port 1.
Port 2 supports simplex (output only) RS-232, or 20mA current loop (active or passive).
Access to the serial communication ports is through the cord grips (TB2 and TB4) located on the back of the
enclosure (see Figure 2-11). See Figure 2-12 for serial I/O wiring termination assignments.
Figure 2-11. Serial Port TB2 Connector
Figure 2-12. Serial I/O Wiring Locations
TB3 & 5
Serial
Communications
REAR VIEW
TB1 POWER TB2 & 4
6
5
4
3
2
1
SERIAL COMMUNICA
TIONS - 2
J11
J10
RX+ (20 mA passive Port 1)
RX- (20 mA passive Port 1)
RX+ (20 mA active Port 1)
TX- (20 mA Port 2)
TX+ (20 mA Port 2)
TX- (20 mA active Port 1)
GND or RX 20 mA active Port 1
TX+ (20 mA active Port 1)
RX1 (RS-232 duplex Port 1) RD1
TX1 (RS-232 duplex Port 1) TD1
TX2 (RS-232 Port 2) TD2
1
6
5
4
3
2
SERIAL COMMUNICA
TIONS - 1
1
U8
U9
U13
TB4
TB2
RS232
20MA
RS485
ACTIVE
PORT 1 RECEIVE
PASS
S1
1
2
3
4