20
RS-485 Networks
The TS1067E provides three RS485 networks;
• The ChallengerPlus LAN (Figure 2, item 9)
• RS485 BUS1 (Figure 2, item 15)
• RS485 BUS2 (Figure 2, item 18)
All network interfaces have similar wiring requirements which are detailed
below in section RS485 cabling.
ChallengerPlus LAN
The PANEL (TECOM BUS) connector is used to connect the Network Access
Controller to a ChallengerPlus LAN, if required by its operating mode.
There is no power terminal on this interface: the Network Access Controller is
a slave device on the ChallengerPlus LAN, so it is not expected to power the
host, and its operating current is too high to be supplied by the host.
RS-485 buses
The Network Access Controller can have up to 16 RAS devices such as
keypads, card readers, arming stations, or Smart Door Controllers on each
BUS (local LAN). The Network Access Controller can also have up to 15 DGP
devices on BUS 1 and up to 16 DGP devices on BUS 2.
Each BUS supports protocols other than Tecom, namely OSDP v2 (Open
Supervised Device Protocol), SALLIS by SALTO, and Aperio. The protocol to
be used on each BUS can be independently configured.
All network interfaces have similar wiring requirements which are detailed
below section RS485 cabling.
Note: Devices connected to the RS-485 buses and powered by the Network
Access Controller must comply with Appendix B: Output fusing and user
current limits on page 34
Devices can be connected to the Network Access Controller via the 4-pin RS-
485 terminals for BUS 1 (Figure 2 on page 12, item 15) or BUS 2 (Figure 2 on
page 12, item 18).
Alternatively, devices can be connected to BUS 1 via the 4-pin plug-in RS-
485 sockets (Figure 2 on page 12, item 14). The sockets are for easy
connection to the expander boards that support the connection such as the
TS1061 Dual Wiegand Interface.
RS-485 cabling
Carrier Fire & Security recommends that the RS485 network wiring comply
with the following:
* Use 2 pair twisted shielded data cable such as Belden 8723.
* Keep the total length of wire on each RS-485 network below 1.5 km.
* Networks must not span buildings or separate earth zones without the use
of LAN isolation devices such as TS0893.
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