Control Lines

The following lines of the EM1000 module (located on the NB10x0 network board) are used to control the IB1004 + SB1004.

In the tables below, "output" means an output of the EM1000 and "input" means an input of the EM1000.

A/D Converter Control

For more information see A/D Converter.

Line	Function	Corresponding EM1000 I/O line	IC1000 cable line
DI (input)	Serial data in	GPIO12	25
DO (output)	Serial data out	GPIO13	27
CLOCK (output)	Serial clock (LOW idle state)	GPIO2	5
C/D (output)	Register selection: HIGH — data register LOW — control register	GPIO40	6
RFS (output)	Receive frame sync (Active LOW)	GPIO32	30
TFS (output)	Transmit frame sync (active LOW)	GPIO33	28
CHS0 (output)	Channel selection, bit 0	GPIO41	8
CHS1 (output)	Channel selection, bit 1	GPIO42	10
CHS2 (output)	Channel selection, bit 2	GPIO43	12

For more information see D/A Converter.

Line	Function	Corresponding EM1000 I/O line	IC1000 cable line
DATA (output)	Serial data out	GPIO11	23
CLOCK (output)	Serial clock (LOW idle state)	GPIO1	3
WR (output)	Data latch strobe (active LOW)	GPIO34	26
EN (output)	Output enable: HIGH (or input^*) — disabled LOW — enabled	GPIO35	24

*GPIO line configured as input (default state)

For more information see Relays.

Line

Function

Corresponding EM1000 I/O line

IC1000 cable line

RELAY1 (output)

Relay 1 control:

GPIO36

RELAY2 (output)

Relay 2 control:

GPIO37

*GPIO line configured as input (default state)

For more information see RS232/485 Port.

Line	Function	Corresponding EM1000 I/O line	IC1000 cable line
RX (input)	Receive line of the serial port	GPIO8/RX0	17
TX (output)	Transmit line of the serial port	GPIO9/TX0	19
MODE (output)	Mode selection: HIGH — RS485 LOW (or input^*) — RS232	GPIO44	14
DIR (output)	Direction control in RS485 mode: HIGH — output LOW — input	GPIO0/RTS0	1

*GPIO line configured as input (default state)

For all LED control lines:

For more information see LED Control.

*GPIO line configured as input (default state)