GP485A TDK Corporation, GP485A Datasheet - Page 11

• Manufacturer Part Number: GP485A
• Description: GPIB CONTROLLER
• Manufacturer: TDK Corporation
• Series: ZUPr

Specifications of GP485A

• Accessory Type: Controller
• For Use With/related Products: ZUP Series
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4846340

8
1
(rear panel view)
3.12 CONTROLLER DEFAULT CONFIGURATION
3.10 CONNECTING GP485 TO ZUP POWER SUPPLY
RS485
The GPIB connector is a standard 24-pin shielded Champ female connector with metric screwlock
hardware. Fig. 3-5 shows a diagram of the GPIB connector and the signals supported. The * suffix
indicates that the signal is active low.
The GP485 power-up default setting is as follows:
GPIB address ( the GP485 is shipped from Factory with address “0”)
8 data bits/character
1 stop bit/character
no parity
9600 baud rate
If you want to change any default settings, you must change the DIP switch settings or set it by
software. To change the DIP switch, shut down the system and then refer to Par. 4.2.3. To change the
serial port setting refer to table 5-5 ,
3.11 THE GPIB CONNECTOR
Fig. 3-5: The GPIB Connector and
OUT
GP485
8
7
6
5
4
3
2
1
Signal Designations
Fig.3-3: GP485 to ZUP cable layout
TXD
TXD
RXD
RXD
SG
_
+
_
+
5
2
4
6
8
SHIELD
IN
5
2
4
6
8
sps
OUT
5
2
4
6
8
command.
SG -
TXD -
TXD +
RXD -
RXD +
SHIELD
NDAC *
NRFD *
DIO1 *
DIO2 *
DIO3 *
DIO4 *
SRQ *
DAV *
ATN *
EOI *
IFC *
REMARKS
Twisted
Pair
Twisted
Pair
10
12
11
1
2
3
4
5
6
7
8
9
13
14
15
16
17
18
19
20
21
22
23
24
SHIELD
Fig.3-4: Connecting GP485 to Zup
DIO5 *
DIO6 *
DIO7 *
DIO8 *
REN *
GND ( Twisted Pair with DAV * )
GND ( Twisted Pair with NRFD * )
GND ( Twisted Pair with NDAC * )
GND ( Twisted Pair with IFC * )
GND ( Twisted Pair with SRQ * )
GND ( Twisted Pair with ATN * )
SIGNAL GROUND
5
2
4
6
8
power supply via RS485 cable.
SG
TXD
TXD
RXD
RXD
_
+
_
+
(rear panel view)
RS485/232
Zup Unit
IN
8
7
6
5
4
3
2
1
SG
RXD
TX (RS232)
RXD
TXD
RX (RS232)
TXD
Not Used
+
_
+
_
1
8