MAN0923_Issue 3_04/15
Touchpoint Pro
Operating Instructions
46
4. Electrical Installation
4.3.1 Ring Network
The external ring network cabling should be shielded twisted pair cable. The terminals will accept a
maximum wire size of 1.5 mm
2
.
4.3.2 Field devices
Field device cabling should be appropriate to the area classification, and in accordance with the device
manufacturer’s recommendations. Refer to local and national regulations where appropriate, and the field
device manual. All sensor field cables must be screened in order to ensure correct operation of the system
and to meet European Standards for RFI and EMC.
Ensure that the maximum loop resistance is not exceeded, as specified by the device manufacturer.
Take account of voltage drops due to line resistance to ensure that the correct voltage level is present at the
field device, as specified by the device manufacturer.
The I/O modules will accept wire sizes to a maximum of 2.5 mm².
4.3.3 Power Supplies
Power supplies can be in the range 100 - 240 Vac, 50/60 Hz, single phase, or 24 Vdc nominal (18 - 32 Vdc).
Use approved supply wiring rated in accordance with the rating plate on the specific system, in accordance
with local and national regulations. The Touchpoint Pro power supplies will accept wire sizes in the range
0.5 - 6 mm
2
(solid wire), 0.5 - 4 mm
2
(stranded wire) or 20 - 10 AWG.
4.3.4 Bus interfaces
Please refer to the appropriate appendix.
4.3.5 Ethernet
Ethernet cable must be CAT5e or CAT6 Ethernet cable terminated to TIA/EIA-568B standard. The cable
should have shielded RJ45 plugs with the shield of the cable connected to the metal body (shield) of the
connector plug. The cable length should not exceed 100 m. The Ethernet cable should be fitted through a
gland.
4.3.6 Touchpoint Pro Battery Box
The cable between the Touchpoint Pro System UPS and the Touchpoint Pro Battery Box must be 4 mm
2
,
UL/CSA approved wiring material, tri-rated (105 °C). The maximum cable length between the Battery Box
and the UPS is 5 m. Bootlace ferrules must be used on all terminations.