TERMBOX-1222 - TERMBOX - TERMBOX-1222

TERMBOX-9000, 1200, 1212, 1222 User Guide

Document code
M210310EN
Revision
G
Language
English
Product
TERMBOX
Document type
User guide

TERMBOX‑1222 has two 12 V signal line protectors that can be used with RS‑485, RS-232C, LON, and leased-line modems. The signal ground and chassis ground are isolated from each other by a 53 V gas‑filled surge arrester.

The signal grounds are connected to common ground using a gas discharge tube.

Figure 1. TERMBOX‑1222
1
AC power connections
2
AC power overvoltage protector
3
Mounting screws
4
Signal line connections/protectors
Figure 2. TERMBOX‑1222 General Wiring Diagram