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Galaxy Dimension Installer Manual
A
680 Ω EOL
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:
Keypads
Keyprox
Touch Center
RIO's/SPSU's
RF RIO
MAX/DCM
RS232
Telecoms
Printer
ISDN
Ethernet
Audio Interface
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.
Keypad/Keyprox
OR
Module
B
Figure 2-7. Twin AB Line Daisy-Chain configuration
GD-48
(Line 1 only)
8
3
1
4
4
4
1
1
1
1
1
1
Table 2-5. Communication Devices
RS485 Recommendations
Keypad/Keyprox
Module
Galaxy
Control
Panel
A
B
Remove
LK3/LK5
GD-96
GD-264
(Lines 1-2)
(Lines 1-2)
8 per line
8 per line
3 (line 1)
3 (line 1)
4 (line 2)
4 (line 2)
1 per line
1 per line
4 (line 1)
15 (line 1)
6 (line 2)
16 (line 2)
4 (line 1)
15 (line 1)
6 (line 2)
16 (line 2)
8 per line
8 per line
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
2-9
OR
A
B
680 Ω EOL
GD-520
(Lines 1-4)
8 per line
3 (line 1)
7(lines 2, 3, 4)
1 per line
15 (line1)
16 (lines 2, 3, 4)
15 (line 1)
16 (lines 2, 3, 4)
8 per line
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
1 (line 1 only)
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