I
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I
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Front/Rear Panel
Connectors
The codes next to the
HP-II3
connector, illustrated in Figure 7-4, describe
the HP-IB electrical capabilities of the synthesizer, using IEEE Std. 488-1978
mnemonics (HP-IB, GP-IB,
IEEE-488,
and RX-625 are all electrically
equivalent). Briefly, the mnemonics translate as follows:
SHl Source Handshake, complete capability.
AH1
Acceptor Handshake, complete capability.
T6:
Talker; capable of basic talker, serial poll, and unaddress if
MLA.
TEO
l%Iker,
Extended address; no capability.
L4
Listener, capable of basic listener, and unaddress if MTA.
LEO
Listener, Extended address; no capability.
SRl Service Request, complete capability.
RLl
Remote Local, complete capability.
PPO
Parallel Poll, no capability.
DC1
Device Clear, complete capability.
DTl
Device Trigger, complete capability.
CO, 1, 2, 3, 28
Controller capability options; CO, no capabilities; Cl, system
controller;
C2,
send IFC and take charge;
C3,
send REN;
C28,
send I. F. messages.
El
Electrical specihcation indicating open collector outputs.
These codes are described completely in the IEEE Standard 488 (1978)
IEEE Standard Digital Interface
for
Programmable Instrumentation
or the
identical ANSI Standard MCl. 1.
7-12
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General