Telegraph switch (1930s).  Western Union Telegraph Company repeater switching system in St. Louis.  Source: N.W. Ayer & Sons and National Museum of American History.

Related content

Pager user guides

The standard one-way alphanumic pager used by School of Medicine affiliates is the Unication Alpha Elite, based on the classic Motorola Advisor Elite.  (Motorola no longer makes pagers, but the current models use an unchanged internal and external design.)

Advisor Elite (Alpha Elite) User Guide (PDF)
A comprehensive 44-page manual, formatted for on-screen viewing.
To print the manual on 8.5 x 11 paper, use this version.

Advisor Elite (Alpha Elite) Quick Start Guide (PDF)
A 4-page overview, condensed from the manual.
Sufficient if you've used a pager before.

Other pager guides

One-way numeric pager user guides (USA Mobility)
Click on the link for your device.  Guides are in PDF format.

One-way alphanumeric pager user guides (USA Mobility)
Click on the link for your device.  Guides are in PDF format.

Two-way alphanumeric pager user guides (USA Mobility)
Click on the link for your device.  Guides are in PDF format.