Pneumercator ETD1000 - Communications; Cable Requirements

ETD1000 Instruction Manual - 2017-07-01.docx Page 14 of 28 July 1, 2017
2.2.2 Communications
The ETD1000 supports an RS-485 multi-drop cabling topology as illustrated in Figure 2.2.2-1 below.
Maximum cable distance from the TMS console to the furthest ETD1000 is 4000 feet (1200M).
Figure 2.2.2-1 Communications Topology
2.2.2.1 Cable Requirements
Cable type should be 24AWG, single twisted pair, shielded, designated for RS-485 communications
having a nominal impedance of 120 ohms.
Recommended Cables:
-4 to 176F (-20 to 80C) Operation* - Belden 9841 or equivalent
-94 to 392F (-70 to 200C) Operation* - Belden 89841 or equivalent
*See Section 5.0 Product Specifications for Operating Temperature range limits of the ETD1000.
DWG NO. 20027 REV. B
PNEUMERCATOR
Liq ui d Lev el C ont ro l S yst em s
ETD 10 00
ELECT RONIC TANKDISPLAY
AC
POWER
ELECT RONIC TANKDISPLAY
ETD 1000
PNEUMERCATOR
Liq ui d Lev el C ont ro l S yst em s
JUNCTION BOX
END-OF-RUN
ETD1000 OR RA400
#2#1
TMS
4000 FEET (1200 M) MAX. DISTANCE
PNEUMERCATOR
Liq ui d Lev el C ont ro l S yst em s
TANKMANAGEMENT SYSTEM TMS
ETD1000 OR RA400ETD1000 OR RA400
PNEUM ERCATOR
Liqu i d Le ve l Cont ro l S yst em s
REMOTEANNUNCIATOR RA 400
PNE
Liqu id Lev e
REMOTEANNUNCIATOR RA 400
AC
POWER
AC
POWER
ELECTRONICTANK DISPLAY
ETD 1000
PNE
Liq ui d Lev e
REMOTEANNUNCIATOR RA 400
IMPORTANT! Use only recommended RS-485 communications cable or
manufacturer’s DOCUMENTED equivalent.