TTI TGR1040 Manuel D'instructions page 16

Talk mode will be cancelled by any of the following interface control codes being received:
12H Listen Address for any instrument.
14H Talk Address followed by an address not belonging to this instrument.
03H Universal Unaddress control code.
04H Lock Non-Addressable mode control code.
18H Universal Device Clear.
Talk mode will also be cancelled when the instrument has completed sending a response
message or has nothing to say.
The interface code 0AH (LF) is the universal command and response terminator; it must be the
last code sent in all commands and will be the last code sent in all responses.
The interface code 0DH (CR) may be used as required to aid the formatting of commands; it will
be ignored by all instruments. Most instruments will terminate responses with CR followed by LF.
The interface code 13H (XOFF) may be sent at any time by a listener (instrument or controller) to
suspend the output of a talker. The listener must send 11H (XON) before the talker will resume
sending. This is the only form of handshake control supported by ARC.
Full List of Addressable RS232 (ARC) Interface Control Codes
02H Set Addressable Mode.
03H Universal Unaddress control code.
04H Lock Non-Addressable mode control code.
06H Acknowledge that listen address received.
0AH Line Feed (LF); used as the universal command and response terminator.
0DH Carriage Return (CR); formatting code, otherwise ignored.
11H Restart transmission (XON).
12H Listen Address - must be followed by an address belonging to the required instrument.
13H Stop transmission (XOFF).
14H Talk Address - must be followed by an address belonging to the required instrument.
18H Universal Device Clear.
GPIB Interface
When the GPIB interface is fitted the 24-way GPIB connector is located on the instrument rear
panel. The pin connections are as specified in IEEE Std. 488.1-1987 and the instrument
complies with IEEE Std. 488.1-1987 and IEEE Std. 488.2-1987.
GPIB Subsets
This instrument contains the following IEEE 488.1 subsets:
Source Handshake
Acceptor Handshake
Talker
Listener
Service Request
Remote Local
Parallel Poll
Device Clear
Device Trigger
Controller
Electrical Interface
SH1
AH1
T6
L4
SR1
RL1
PP1
DC1
DT0
C0
E2
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