Galaxy Dimension Installer Manual
2-9
2. The system must be wired in a daisy-chain configuration. Spur and star configurations must not
be used as they reduce the immunity to electrical interference.
3. The cable used must screened twisted pair (Part No W002) to connect the RS485 (AB) line. This
would be CAT5 or Belden 8723 equivalent.
Figure 2-7. Twin AB Line Daisy-Chain configuration
RS485 Wiring Recommendations
To ensure that the system communicates at the maximum level of efficiency, the following recommendations
must be adhered to:
1. The maximum number of devices on each line are:
Table 2-5. Communication Devices
RS485 Recommendations
A
B
A
B
Galaxy
Control
Panel
680 Ω EOL
680 Ω EOL
A
B
Keypad/Keyprox
OR
Module
Keypad/Keyprox
OR
Module
Remove
LK3/LK5
GD-48
(Line 1 only)
GD-96
(Lines 1-2)
GD-264
(Lines 1-2)
GD-520
(Lines 1-4)
Keypads
8 8 per line 8 per line 8 per line
Keyprox
3
3 (line 1)
4 (line 2)
3 (line 1)
4 (line 2)
3 (line 1)
7(lines 2, 3, 4)
Touch Center
1 1 per line 1 per line 1 per line
RIO's/SPSU's
4
4 (line 1)
6 (line 2)
15 (line 1)
16 (line 2)
15 (line1)
16 (lines 2, 3, 4)
RF RIO
4
4 (line 1)
6 (line 2)
15 (line 1)
16 (line 2)
15 (line 1)
16 (lines 2, 3, 4)
MAX/DCM
4 8 per line 8 per line 8 per line
RS232
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
Telecoms
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
Printer
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
ISDN
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
Ethernet
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
Audio Interface
1 1 (line 1 only) 1 (line 1 only) 1 (line 1 only)
To Next Page
Loading...
Need help?
General
