Intertek 1802 Installation & Owner's Manual page 29

RS-485 Daisy Chain Wiring
1970-010 1970-010
J1 J1
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
12 12
13
The wires connecting terminals 1 & 2 from
14
the Access Plus system to terminals 8 & 7
15
on the DoorKing RS-485 boards MUST be
16
twisted. We recommend that you use
17
Cat5e cable for all the RS-485 connec-
18
tions (See section 1.3 for wire size and
run distances table). Use one twisted pair
to connect these terminals (terminal 1
connects to terminal 8; terminal 2
connects to terminal 7) and then one wire
from another twisted pair to connect the
common terminal (terminal 3 from the
Access Plus system to terminal 6 on the
RS-485 board).
RS-485
Keypad
1 2 3
If wiring will be
outdoors or under-
ground, use Cat5e
Gel Filled (flooded)
UV Resistant Direct
Burial Cable.
1810-162-A-6-16
Terminals 1 and 2
J4
+
MUST be twisted.
-
Com
1 1
2 2
4 4 3 3
5 5
7 7 6 6
8 8
9 9
0 0
1 3
Device Address
Set to 003
MASTER CODE
SW1
When 6 RS-485 wires are
connected to terminal,
1513-010 1513-010
then SW2 termination
switch MUST be OFF.
ON
4 5 6 7 8 9 10
OFF
SW2
Any RS-485 Keypad, Cardreader and
MicroPlus RF Receiver sequence
allowed. Maximum distance from end
to end is 4000 feet in a Daisy Chain
format as shown, see next page for
different RS-485 wiring configurations.
1
RS-485 DATA A (+)
2
RS-485 DATA B (-)
3
RS-485 Common
TERMINATION TERMINATION
TERMINATION
BAD DNS
4
SW2
5
When 3 RS-485 wires are
6 connected to terminal,
LAN CONNECTION LAN CONNECTION AN O E C T
then SW2 termination
7 J1 J1
switch MUST be ON.
8 RJ-45 RJ-45
Jack
(Cat5)
RS-485
Cardreader
Device Address
Set to 004
When 6 RS-485 wires are
connected to terminal,
then SW1 termination
switch MUST be OFF.
1 2 3 4 5 6 7 8
Terminals 7 and 8
MUST be twisted.
Cat5e
RS-485 RX
LAN DOWN
MODEM / TCP ENB
SW1
DATA DATA TRANSMIT ATA
1972-010
J3 J3 J3 J3 J
KEYPAD
RS-485
MicroPlus
RF Receiver
1 2 3 4 5 6 7 8 910
Device Address
Set to 005
SW4 SW2
ON
1 2 3
9 10
Terminals 7 and 8
MUST be twisted.
Cat5e
Setting the device address switches
are different for each RS-485 device.
Refer to the individual RS-485
instruction sheet to set the addresses
for these products and see the next
page for more information about
address restrictions.
Do Not power RS-485 devices from the access
plus system. RS-485 devices must be powered
from their own power source. Refer to the
individual device wiring instructions for connec-
tion information and wiring guidelines for these
products.
MASTER MASTER M ER
CODE CODE DE
PHONE LINE
IN USE
MIC VOL MIC VOL MI V
SPEAKER
1970-010
VOL
J2
When 3 RS-485 wires are
connected to terminal, then
11
SW 5 termination switch
MUST be ON (End of chain).
8053-010
SW3 SW5
0 0
ON
4 5 6 7 8
25