Figure 27: Polling Loop Connections Using One 4297 Extender Module; Figure 28: Single 4297 To Extend Polling Loop Calculations; Figure 29: Polling Loop Connections Using Multiple 4297 Modules - Honeywell VISTA-128BPT Installation And Setup Manual

Single 4297 to Extend Polling Loop

Figure 27: Polling Loop Connections Using One 4297 Extender Module

D1-i + Dn-i = 128 max, or per Tables 1 & 2 above.
+
D1-o Dn-o = 128 max, or per Tables 1 & 2 above.
L + L ≤ 12,000 ft., unshielded
in out
2 above, whichever is smaller.
Using Multiple 4297 Polling Loop Extenders

Figure 28: Single 4297 to Extend Polling Loop Calculations

or per Tables 1 & 2 above, whichever is smaller; ≤ 6,000 ft., shielded, or per Tables 1 &
,

Figure 29: Polling Loop Connections Using Multiple 4297 Modules

SECTION 4: INSTALLING THE CONTROL
4-29