User’s Manual
21
The BL2600 can be used in an RS-485 multidrop network. Connect the 485+ to 485+ and
485– to 485– using single twisted-pair wires (nonstranded, tinned) as shown in Figure 13.
Note that a common ground is recommended.
Figure 13. BL2600 Multidrop Network
The BL2600 comes with a 220
Ω
termination resistor and two 681
Ω
bias resistors installed
and enabled with jumpers across pins 1–2 and 5–6 on header JP7, as shown in Figure 14.
Figure 14. RS-485 Termination and Bias Resistors
RS-485
RS485+
GND
RS-485
RS485+
GND
RS-485
RS485+
GND
J15
J16
AIN0
AIN1
AIN2
AIN3
JP6
420 mA
AV0 AV1 AV2 AV3 AI0 AI1 AI2 AI3
AGND
GND HOUT0 +HK1
GND HOUT2 +HK3 GND
+HK0 GND HOUT1 +HK2 GND HOUT3
TXC TXF
TXE
485 GND
GND RXC RXF RXE 485+
J17
GND HOUT0 +HK1
GND HOUT2 +HK3 GND
+HK0 GND HOUT1 +HK2 GND HOUT3
TXC TXF TXE 485
AIN1 AIN3 AIN5 AIN7
AGND
AV1 AV3 AI1 AI3 AGND
AIN0 AIN2 AIN4 AIN6
AGND
AV0 AV2 AI0 AI2 AGND
J11
20
19
R43
JP6
R44
R39
R38
R20
R33 R34U13
R22
R21
R17
C18
C19
U12
R15
C13
R16
C10
R10
U11
J8
R14 R13 C1
1
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AGND
C12 R12 R1
1
U10
BT1
C26
C27
D1
U15
C25
J12
J13
C22
R55
R42
C23
C24
R41
R40
R35
R36
R37
U14
R26 R28
R30
R19
R29
R32
R31
R56
R57
L1
R27
R25
R23
R24
C20
C21
R18
C16
1
2
25
26
RXE
J14
Q19
D3
Q17
D2 Q18
RXC
D4 Q20
C34
RXF
485+
C35 C36 C37
JP7
485 TERM.
RESISTOR
C30
R58
R59
R60
U18
C32
C33
RCM2
U17
C31
R9
U16
R8
J10
R7
GND/EGND
RP5
RP6
U2
C4
R5
C5
R6
C6
U4
JA
RCM1
RCM3000 ETHERNET CORE MODULE
U3
RP17 RP18
34
33
16
15
1
2
1
2
15
16
33
34
C1
U1
RP3
RP4
GND +K DCIN +5V JP3, JP4 AND JP4
JP1 AND JP2
GND +K DCIN +5V
J4 RABBITNET 1
J6 RABBITNET 0
J7
C14
C17
C15
C78
J9
C9
U9
RP16
C8
U8
R4
R3
RP15
RP14
RP12
RP13
RP1
1
R1
R2
C7
U6
U7
U5
RP8
RP7
RP9
RP10
C2
Q9 Q10
J5
Q12
Q15
Q14
Q16
Q1
1
Q13
C3
Q1
Q2
Q3
Q4
Q5
Q6Q7
Q8
JP2
JP1
J1
J2
GND DIN28 DIN24 DIN20 DIN16 GND DIO12 DIO08 DIO04 DIO00
DIN30 DIN26 DIN22 DIN18 +K DIO14 DIO10 DIO06 DIO02 GND
DIN31 DIN27 DIN23 DIN19 +K DIO15 DIO11 DIO07 DIO03 GND
GND DIN29 DIN25 DIN21 DIN17 GND DIO13 DIO09 DIO05 DIO01
GND DIO14 DIO12 DIO10 DIO08 DIO06 DIO04 DIO02 DIO00 GND
+K DIO15 DIO13 DIO11 DIO09 DIO07 DIO05 DIO03 DIO01 GND
GND DIN30 DIN28 DIN26 DIN24 GND DIN22 DIN20 DIN18 DIN16
DIN31 DIN29 DIN27 DIN25 +K DIN23 DIN21 DIN19 DIN17 GND
DIO 0007 PULLS
DIO 0815 PULLS
1
2
39
40
SW1
J3
1
2
DCIN DCIN GND GND
R111
R1
12
RESET
RP2
RP1
JP3
DIN 1619 PULLS
JP4
DIN 2023 PULLS
DIN 2431 PULLS
JP5
R84
C28
1
2
DS1
U1
U6
R28
R38
R41
C5
C3
C9
C8
C12
C17
C23
C30
C18
C29
C35
C33
R29
R37
R39
R40
R42
Y3
C42
R35
R31
R27
R25
DS1
R67
R70
J4
C79
Y4
C83
C86 GND
R75
R74
R71
DS3
DS2
R63 R64
C71 C72
C68
C64
C67
L2
U8
R49
R48
C62
R51
C61
R44
R47
C59
C49
C57
L1
R69
R72
R73
C75
C74
R58
C53
C47
C48
C45
C44
C43
JP5
C31
JP3
JP4
C28
C27
C37
C36
C32
R24
R22
C19
R23
C24
R20
C20
R19
C16
C15
R17
R18
R7
R9
R1
R8
C1
R10
R14
C4
SPD LNK
ACT
J3
U5
U4
D1
Q1
C39
RP1
JP7
4
3
2
1
R97
681
W
R98
220
W
R96
681
W
485+
485
6
7
termi-
nation
bias
bias
U17
JP7
2
1
6
5
6
5
Factory
Default
Содержание Wolf BL2600
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