Figure 10: Direct Connection Between Computer And Unit 1 Of Multi-Link Chain; Figure 11: Db25 Connections - Chamberlain SENTEX Infinity Series Installation Instructions Manual

Figure 10: Direct Connection Between Computer and Unit 1 of Multi-Link Chain

PIN NUMBER ON DB 25
Place one jumper between pins 4 and 5 and
another between pins 6 and 20.
3 ("receive data")
7 ("signal ground")
2 ("transmit data")
Jumper:
Pins 4 to 5
Pins 6 to 20
DB25
1565F3
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DB25 Connections.
7
DB25 PIN #
3-Conductor, Shielded Cable
(30 Feet Max. Length)

Figure 11: DB25 Connections

Doc 6001565
TERMINAL ON MAIN CIRCUIT BOARD TB 2
Place a jumper between pins 1 ("cts") and 5 ("rts").
RS-232 out ("out")
RS-232 in ("in")
Jumper
CTS to RTS
Use 18-24 AWG,
INFINITY
PROCESSOR
BOARD
GROUND
TB2
CTS
OUT
GND
IN
RTS
Rev C