Digital Multimeter 
 
Configuring the IEEE-448 Port 
  5 
Capability Commands 
To conform to the IEEE 488.1 standard specification, it is not essential for a device to 
encompass the full range of bus capabilities. The IEEE 488.1 document describes and 
codes the standard bus features, so that manufacturers may give brief coded descriptions 
of their own interfaces’ overall capability. 
The codes that apply to the Meter are given in Table 1 below, together with short 
descriptions. These codes conform to IEEE 488.2 requirements. 
Appendix C of the IEEE 488.1 document contains a complete description of each code. 
Table 2. IEEE 488 Compatibility Codes 
IEEE 488 Subset  Interface Functions 
SH1  Source Handshake Capability 
AH1  Acceptor Handshake Capability 
T5  Talker (basic talker, serial poll, unaddressed to talk if addressed to listen) 
L4  Listener (basic listener, unaddressed to listen if addressed to talk) 
SR1  Service Request Capability 
RL1  Remote/Local Capability (includes local lockout) 
PP0  No Parallel Poll Capability 
DC1  Device Clear Capability 
DT1  Device Trigger – Supports group trigger (GET). 
C0 No Controller Capability 
E2  Open-Collector and Three-State Drivers 
Interconnections 
Instruments fitted with an IEEE 488 interface communicate with each other through a 
standard set of interconnecting cables, as specified in the IEEE 488.1 Standard 
document. 
The IEEE 488 interface connector is located on the Meter’s rear panel.