RS-485通用电缆布线指南说明书

3
or
2
If the first unit is the only unit,
jumper 1 to 2 to terminate.
1
Between Each Unit.
1 on the bottom. Switched Battery Voltage –
RS-485 Communications Module
5
2 1
J17
J16 KEYPAD
SECURITY
ON
S1
OFF
(-)
XBT1
(+)
21 21
14
14
J3
MMI
DISPLAY
13
1
14
2
5
1
9
6
J15 I/O EXP
J2
J12 J11
3
3
1
1
J1
BATT
CHARGER INPUT
J5
J4
COMM 2 COMM 1
34
33
XA2 XA1
1
1
J6
J7 XFC Board
To Third Party RS-485 Device
Typically Used To Turn The UCI (Universal Communications Interface) Around From Transmit Mode To Receive Mode. May need to daisychained to the other units on the bus.
5
1
9
6
J15 I/O EXP
J1 BATT
J12 J11
J5
3
3
1
1
1
3
12
J4
13
COMM 2 COMM 1
J2
CHARGER
XA2 XA1
INPUT
J12 J11
3
3
1
1
J5 J4
1 BLK (GND)
3 WHT (SWVBATT) 12 RED (BUS+) 13 BRN (BUS-)
14 13
3. Units must be daisy-chained; No Star Configurations.
Jumper 1 to 2 on J12 to terminate last unit on bus.
3
J12
2
1
XFC Board 2100204
J1 BATT
21
DISPLAY
CHARGER INPUT
Switches On/Off At Listen
Totalflow P/N 2015193-002/003 In Each Unit.
Cycle Frequency. Zero Listen Time Causes Continuous
Output. Maximum Output Is 2
BRN (BUS-)
COMM 2 COMM 1
XA2 XA1
1
1
J6
LAST UNIT
INTERMEDIATE UNITS
XFC Board 2100204
4. Cable Shielding – Cable segments between units should have their shields terminated on one end only. The RS-485 Cable (P/N 2011648-001) has two shields, each with its own drain wire. When connecting multiple units together, connect the two drain wires on the first unit to one of the two ground screws on the bottom left-hand side of the enclosure. Cut the cable and terminate the wiring on the second unit but do not connect the drain wires. On the next segment between the second and third units, connect the two drain wires to the second unit but not to the third unit. Repeat this process until all units are wired.
Same As SWVBATT Except With An On-Board 1500 Ohm Current Limiting Resister In Series.
Typically Only Bus+, Bus- And Gnd May Be Required To Communicate With A Third Party RS-485 Device, But For Information Purposes, All Lines Associated With Comm 2 RS-485 Mode Are Shown.
TOTALFLOW Products
ACTION
L16922
DOC TYPE TITLE
XFC COMM 2 (2100204 BD)
UD
RS-485 GENERIC WIRING GUIDE
DWG NO.
REV
SHEET
2101964 AA 1 OF 1
NOTES:
1. All installations in hazardous locations must comply with requirements of certification Drawing 2015246-CD.
2. Maximum length of RS485 bus is 4000 Ft. @9600 baud using Totalflow cable P/N 2011648-001 or equivalent.
RS-485 Cable
Plug in modules with smooth side of
J12
Totalflow P/N 2011648-001
the module on the left which puts pin
Jumper 2 to 3 on J12 for first and intermediate units.
2100204
J8
1
13
J9 14
25
AMU INTERห้องสมุดไป่ตู้ACE
FIRST UNIT
1 BLK (GND) 2 BLU (VBATT) 3 SWVBATT
12 BUS+ 13 BUS14 RRTS 16 OPERATE
Battery Voltage Output – Max. 2 Amps 11.9 – 17.0 VDC Does Not Turn Off Under Any Condition.
Amps. Turns Off If Battery
RED (BUS+)
Voltage Drops To 11.9 Volts
WHT (SWVBATT) BLK (GND)
Or A Programmable Voltage On Some Units.
1
1
U7 SRAM
U5 FLASH
5
U11 PROM