
Chapter 4. Troubleshooting
PELLERIN MILNOR CORPORATION
U. Battery for real-time clock (non-removeable)
V. Connector J4: DC power (0 volts and +12 volts)
W. Light D31: touch registered
4.3.2.
Input/output board (P/N: 08BHF120A_)
Figure 36: 08BHF120_, Revision B
A. Connector M4: extra outputs
B. Connector M5: inverter drive outputs
C. Light P1_TX: port 1 transmit
D. Light P1_RX: port 1 receive
E. Connector M8: RS-485 port 0 (to processor board) and port 1 (not used)
F. Light P0_TX: port 0 transmit
G. Light P0_RX: port 0 receive
H. Connector M7: inputs
I. Connector: JTAG port for factory programming
J. Lights INT0 and INT1: interrupts 0 and 1 (not used)
K. Light: 3.3 volts
L. Connector M3: outputs
M. Connector M2: chemical outputs
N. Light: 5.0 volts DC
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