HP (Hewlett-Packard) 181A Water Dispenser User Manual


 
Preface
Assembly-Level Service Guide xvii
1, 5, 10 MHz external reference capability—to match customer’s house
standard (however, the HP 53132A’s external reference capability is
10 MHz only),
optional ultra-high stability , high stability, or medium stability oven
oscillators for high accuracy needs,
external gating,
statistics,
automatic limit testing,
SCPI programming capability, and
analog display mode limit testing
Programmable control is performed via an HP-IB. The HP-IB and a
talk-only RS-232C serial port are standard for the HP 53131A/132A/181A.
The serial port is for printing measured and analyzed data on serial
printers, or for outputting an out-of-limit signal.