7I48 2
HARDWARE CONFIGURATION
GENERAL
Hardwaresetupjumperpositionsassumethatthe7I48cardisorientedinanupright
position, that is, with the 50 pin controller connector is on the left hand side,
DEFAULT CONFIGURATION
JUMPER FUNCTION DEFAULT SETTING
W1 CABLE POWER SELECT RIGHT = CABLE POWER
W13,W16,W19 CH0 TTL/RS-422 SELECT LEFT = TTL
W4,W7,W10 CH1 TTL/RS-422 SELECT LEFT = TTL
W12,W15,W18 CH2 TTL/RS-422 SELECT LEFT = TTL
W3,W6,W9 CH3 TTL/RS-422 SELECT LEFT = TTL
W11,W14,W17 CH4 TTL/RS-422 SELECT LEFT = TTL
W2,W5,W8 CH5 TTL/RS-422 SELECT LEFT = TTL
TTL/RS-422 ENCODER SELECTION
Each 7I48 channel has a selectable TTL or RS-422 (differential) encoder input
conditioning. Conditioning type is determined by setting groups of 3 jumpers to the left or
rightposition.Whenthejumpersareinthe"LEFT"position,TTLinputsareselected,When
the jumpers are in the "RIGHT" position, RS-422 inputs are selected. Note these sets of
three jumpers are in physical proximity to the terminal block encoder connections.
CABLE POWER/P1 POWER SELECTION
The 7I48 can get its operating power from the flat FPGA cable or from P1. For
testing and with very low power encoders, cable power can be used. W1 selects whether
cable power connects to the 7I48s 5V supply. If W1 is in the "RIGHT" position, cable
power is selected. If W1 is in the "LEFT" position, external 5V power must be supplied via
P1.
