Hp-Ib Interface Functions; Rs-232C Interface; Hp 16500A Hp-Ib Functions - HP 16500A Service Manual

HP 16500A/16501A - Installation

2-11. HP-IB Interface Functions

The HP-IB interface offers 10 functions to support communications. Table 2-1 lists the HP-IB functions
that the HP 16500A uses.
Mne-
monic

2-12. RS-232C Interface

The HP 16500A interfaces with RS-232C communication lines through a standard 25-pin D connector.
The HP 16500A is compatible with RS-232C protocol.
When a hardwire handshake method is used, the Data Terminal Ready (DTR) line (pin 20 on the Com-
puter/Modem connector) is used to signal whether space is available in the logical I/O buffer for more
data. Table 2-2 shows the RS-232C signal definitions.
2-8
Table 2-1. HP 16500A HP-IB Functions
Interface Function Name
SH
Source Handshake
AH
Acceptor Handshake
T
Talker (or TE=Extended Talker)
L
Listener (or LE=Extended Listener)
SR
Service Request
RL
Remote Local
PP
Parallel Poll
DC
Device Clear
DT
Device Trigger
C
Any Controller
E
Electrical Characteristics
HP 16500A
Implemen-
tation
SH1
AH1
T5
L4
SR1
RL1
PP1
DC1
DT1
C0
E2