1838-066-E-12-16
12
SPEAKER
VOL
MIC VOL
KEYPAD
MASTER
CODE
1970-010
11
1 2 3 4 5 6 7 8 910
J2
J1
J3
1970-010
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
MIC VOL
V
MI
MASTER
M
ER
CODE
DE
J1
J3
J3
J3
J
1970-010
12
11
10
9
8
7
6
5
4
3
2
1
ON
ON
MODEM / TCP ENB
1972-010
SW1
SW2
J1
RJ-45
Jack
(Cat5)
J4
LAN CONNECTION
TERMINATION
DATA TRANSMIT
BAD DNS
TERMINATION
LAN DOWN
RS-485 RX
PHONE LINE
IN USE
ON
ON
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
SW1
ON
1
0
OFF
BOARD ADDRESS
1513-010
10
9
8
7
6
5
4
3
2
1
TERMINATION
8053-010
SW4
SW5
SW2
SW3
ON
ON
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
BOARD ADDRESS
2354-010
SW1
SW4
SW2
SW3
ON
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
RS-485 Daisy Chain Wiring
RS-485
Keypad
RS-485
Cardreader
+
-
Com
Terminals 1 and 2
MUST be twisted.
Terminals 7 and 8
MUST be twisted.
Terminals 7 and 8 MUST be twisted.
Terminals 7 and 8
MUST be twisted.
Com
+
-
Com
+
-
Com
+
-
6 7 8
10
9
5
4
3
2
1
1
2
3
4
5
6
7
8
The wires connecting terminals 1 & 2 from
the 1838 to terminals 7 & 8 on the
DoorKing RS-485 boards MUST be
twisted.
We recommend that you use
Cat5e cable for all the RS-485 connec-
tions (See section 1.6 for wire size and
run distances table).
Use one twisted pair
to connect these terminals (terminal 1
connects to RS-485 terminal 8; terminal 2
connects to RS-485 terminal 7) and then
one wire from another twisted pair to
connect the common terminal (terminal 3
from the 1838 to terminal 6 on the RS-485
board).
If wiring will be
outdoors or under-
ground, use Cat5e
Gel Filled (flooded)
UV Resistant Direct
Burial Cable.
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.
Do Not
power RS-485 devices from the 1838.
RS-485 devices must be powered from their
own power source. Refer to the individual device
wiring instructions for connection information
and wiring guidelines for these products.
Cat5e
Cat5e
Cat5e
TERMINATION
RS-485 DATA A (+)
RS-485 DATA B (-)
RS-485 Common
6 7 8
5
4
3
2
1
RS-485
MicroPlus
RF Receiver
When 3 RS-485 wires are
connected to terminal, then
SW 5 termination switch
MUST
be
ON (
End of chain).
2
354-010
When 6 RS-485 wires are
connected to terminal,
then SW1 termination
switch
MUST
be
OFF
.
13-010
3-
3-
When 6 RS-485 wires are
connected to terminal,
then SW1 termination
switch
MUST
be
OFF
.
J1
RJ-45
Jack
(Cat5)
LAN CONNECTION
O
AN
T
C
E
DATA
ATA
When 3 RS-485 wires are
connected to terminal
(end of daisy chain), then
SW2 termination switch
MUST
be
ON
.
When 6 RS-485 wires are
connected to terminal
(middle of daisy chain),
then SW2 termination
switch
MUST
be
OFF
.
OFF
80
53
-01
0
SW
4
SW
5
SW2
SW
3
ON
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
ON
Device Address
Set to 003
Device Address
Set to 004
Device Address
Set to 005
10
9
8
7
6
5
4
3
2
1
4
7
0
1
5
8
2
6
9
3
Summary of Contents for 1838 Access Plus
Page 39: ...1838 066 E 12 16 35...
