Network Topology (Only Rts-20Jxx); Network Communications Setup (Only Rts-20Jxx) - Delta Controls RTS-20 Series Installation & Application Manual

Network Topology (Only RTS-20Jxx)

Room Temperature Sensors with a Service Port may be connected to a BACnet RS-485
MS/TP network or to the LINKnet network. Note that this does not make the RTS-20Jxx a
MS/TP or LINKnet device, it simply adds a connection point to the network for use with
the Service Tool.

Network Communications Setup (Only RTS-20Jxx)

The communication speed is set on the network controllers. Refer to the V3.30 ORCAview
Technical Reference Manual for further detail on configuring the MS/TP network or
changing baud rates, etc.
Network Diagram
(with V3.22 Firmware)
ORCAview
PTP
OWS
System Devices
DSC-1616EX [DCU]
DSC-1616(H/E)
DSC-1212(H/E)
DSC-1280(H/E)
(System Device)
DSC-T305
Subnet Devices
16x16 Controller
12x12 Controller
12x8 Controller
6x6 Controller
Room Controller
VAV/VVT Controller
Lighting Controller
BACstat I
BACstat II
(with or without I/O)
Input Field Modules
LINKnet Notes:
1. Ensure you use the recommended
LINKnet Devices
2. Ensure the cable is installed as a
BACstat I
BACstat II
(with No I/O)
3. Ensure you install MS/TP terminator
BACstat II
(with muxed I/O)
I/O Field Modules
4. Depending on the controller, up to 12
Document Edition 2.3
Ethernet Note:
If the DCU or DSC has Ethernet capability, it may exist on an
Ethernet network with other controllers in the same building, on which
TRM
the ORCAview OWS could reside as well (instead of PTP).
MS/TP Notes:
1. Ensure you use the recommended balanced cable.
RS-232 RS-485
2. Ensure the cable is installed as a daisy-chain from one device to
the next (4,000' or 1220m maximum).
DCU/DSC
3. Ensure you install an MS/TP terminator board (TRM-768) on each
end of each MS/TP network.
4. The maximum nodes per MS/TP network is 50 without a repeater,
or up to 99 with at least one repeater (RPT-768).
BACnet (MS/TP) - Level 3 Network (Subnet)
NET1 NET2
DAC
(Subnet
Device)
balanced cable.
daisy-chain from one device to the
next. (1000' or 300m maximum).
boards when you have more than 1 or
2 devices.
devices are supported on a LINKnet
network, with limitations on how many
of these may have I/O. (Refer to
the Technical Reference Manual.)
DFM
RTS
Level 4
Network
(LINKnet)
TRM
DFM DFM
RTS
* Note: The RTS is NOT a
network sensor it is connected
to the network to provide
Service Port Access
Delta Controls
TRM TRM
NET1 NET2
DAC
(Subnet
Device)
Level 4
Network
(LINKnet)
RTS
Page 11 of 13