User's Manual

Preliminary
AMS-1070 CONTROLLER INSTALLATION GUIDE (8200-0127-06, REV. 0)
9 of 13
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Connecting a Controller to
an RS-485 Network
If you are not connecting the controller to an RS-
485 network, skip this section.
You can network controllers two different ways.
The first way is to use the SyncLink port and the
Network port to daisy-chain the controllers. This
method is shown Figure 11. This method is only
possible, however, if the SyncLink port is not used
for the SyncLink feature.
If the SyncLink port is already in use (or will be in
use), you can network the controllers by
connecting an RJ-12 “T” adapter to the Network
port, as shown in Figure 12.
You can connect a maximum of 32 controllers in an
RS-485 network. More than 32 controllers requires
multiple networks.
The following equipment is required:
• RS232/485 converter – one for every 32
controllers
• RJ-12 connectors – must be 6-wire
• RJ-12 T adapter - available from Black Box
(part number CBCC47289)
• Cabling – you may use either flat telephone
cable or CAT5 cable. Only 3 wires are used.
CAUTION: Do not put the RJ-12
connectors on upside down. Reversing
the order of the conductors will connect
+5V to ground, which will damage the
controller.
CAUTION: Do not connect a Sync-Link
port directly to another Sync-Link port.
Doing so can cause damage to the
controller if one of the controllers is
turned off.
Figure 11. Using the SyncLink and Network
ports to network several controllers
Sync
Service
Network
A
MS-1070
Controller
232/485
Converter
Sync
Service
Network
AMS-1070
Controller
Sync
Service
Network
AMS-1070
Controller
Figure 12. Using an RJ-12 "T" adapter to
network several controllers
Sync
Service
Network
A
MS-1070
Controller
232/485
Converter
Sync
Service
Network
AMS-1070
Controller
Sync
Service
Network
AMS-1070
Controller
Figure 13. SyncLink and Network connectors
Table 7 and Table 8 show the pinouts for the
SyncLink and Network ports. To connect the
controllers in an RS485 network, you must connect
pin 1 of either the SyncLink port (method 1) or the
Network port (method 2) on one controller to pin 1
of the Network port on the next controller. Similarly,
pin 4 must connect to pin 4 and pin 5 to pin 5.
Table 7. Sync Link connector pinout
Pin Signal Description
1 Gnd Digital Ground
2 Synclinkout
3 Synclinkin
4 RS485A Also known as 485-
5 RS485B Also known as 485+
6 +5v Not used
Table 8. Network connector pinout
Pin Signal Description
1 Gnd Digital Ground
2 NC No connect
3 NC No connect
4 RS485A Tied to pin 4 on SyncLink port
5 RS485B Tied to pin 5 on SyncLink port
6 NC No connect
T adapte
r
SYNCLINK NETWORK
RS232/485 converter
RS232/485 converter
1
32
32
1
2
2