York YVAA - SC-EQ Communications Card; SC-EQ Communication Card Interface IPU3

SECTION 7 - OPERATION
JOHNSON CONTROLS
105
FORM 201.28-NM1.1
ISSUE DATE: 1/31/2018
7
20
19
18
17
14
13
11
12
8
7
1
2
3
6
5
4
9
15
10
16
LD19331
NUM DESC NUM DESC NUM DESC NUM DESC
1
TP3 +5V
6
Power LED 11
Port 2
RX2, TX2
16
Port 1
Native BAS
2
TP2 +3.3V
7
Status LED 12
PORT 2 RS-232
Printer or Modbus
17 TP1 GND
3
SD Card
8
Power LED 13
VSD RX
VSD-TX
18 TP4+12V
4
JP4, JP5, JP6
Remote Setpoint
Jumpers
9
Port 2
RS485 to E-Link/SC-
EQ or Modbus
14
U18 VSD
RS-485 Driver
19 TP5 + 15V
5
U5 RTC/BRAM
10
U23 Port 2
RS-485 Driver
15
U26 PORT 1
RS-485 Driver
20 TP10 + 24V
FIGURE 19 - NEW 331-03478-XXX MICROBOARD