PVI 23TL, 28TL Installation and Operation Manual (Rev J)
DOCR-070365-J
Page
33
of
66
Table 7.1 - Communication Connections and Configuration Switches
Item
Picture
Configuration description
1
N.O. N.C. COM
P205 - Dry Contact Communication Port
(3 Pin Connector)
Please see section 7.3 Dry contact
communication for more details.
2
P207 - USB port
Reserved for factory use
3
P204 - Not Used
4
P203 - Not Used
5
P208 - Modbus (RS-485) connector
1 - NC
2 - NC
3 - RS-485+
4 - RS-485-
5 - NC
6
S403 - Not Used
7
S402 - Selector switch for the 120Ω
Modbus RS-485 termination resistor
1 - Disable the RS-485 bus termination
2 - Enable the RS-485 bus termination
8
S401 - Selector switch for setting the
PV connection mode
1 - Independent mode
2 - Parallel mode
See section 5.2 for more details