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ISC Communications
41.10
LNL-IC108A/IC109A RS-232 to RS-485 Converter (4-wire)
Black Box Settings:
Jumpers:
W5 - should be on B-C to set RTS/CTS/CD
W8 - should be on A-B to set 4-wire
W9 - should be on D to set ON
W15 - should be on A-B to set RTS/CD Enabled
W16 - should be on A to set 0 ms Turn Around Delay
W17 - should be on E to set 0.15 ms Driver Enable Hold
W19 - NO JUMPER. This is for test purposes only.
XW1A - Jumper-block must be installed here to set DCE
Emulation Mode
XW1B - Jumper-block must NOT be installed here (this
would change mode to DTE Emulation).
Switches:
S1 -Out to set Normal
S2 - ON to set Terminated or OFF to set Not Terminated
S3 - OFF to set Not Biased
ISC:
Communications Interface Type = RS-485
RS-485 Type = 4-Wire RS-485
Port 1 RS-485 EOL Termination = Termination 'OFF'
(Refer to ISC documentation for more information)
ACD
C
AC
GND
GN
D
IN2
J1
GN
A
B
C
D
IN1
Intelligent S ystem
Controller
LITHIUM
3V
BR2325
RE
PN
SN
V
242 —
revision 7
TXD
TR1+
RXD
TR1-
RTS
R1+
CTS
R1-
J8
GND
TR2+
J7
TR2-
GND
J15
TR3+
TR3-
GND
J16
TR4+
TR4-
GND
J17
TR5+
TR5-
GND
J18
S1
J5
U15
2 MEG
U17
U16
Black Box IC108A
Black Box IC109A
BIAS
S3
110 VAC
Transformer
TR1+ TR1- R1+ R1-
Downstream
ISC on RS-
485 Line
5
ISC panels can be
multidropped on the RS-
485 line using this
DB 9 Pin Male
configuration.
S 1
A B C D E
A B C
TERM.
S2
XW1B
XW1A
25-Pin Serial Connector
7
3
2
RTS
Rx
Tx
2
3
7
3
2
DB 25 Pin Female
9 or 25 Pin Connector
Workstation (PC)
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