Lathem DDC2 User Manual Page 54

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DDC2 / 4-RS -485 Wiring Digital Display Wall Clock Guide Page 48
LTR0 to DDC2-RS / 4-RS
Wire Signal Signal JP4 Connection
Gray Transmit Data (-) Transmit Data (-) D-
Orange Transmit Data (+) Transmit Data (+) D+
Black Signal Ground Signal Ground GND
BLK
BLK
115VAC
Local
Power
To
Other Clocks
LTR0 Fly Leads
Cable should be RS232 twisted pair / CAT3 or CAT5 type.
Maximum distance to last DDC Clock is 4000 feet.
Last DDC Clock must have jumper installed on position J2.
See page 8 for details.
Set switches 1-5 of S1 as shown.
Indicates depressed side of switch
O
P
E
N
1
2
3
4
5
6
7
8
H
M
LTR 0
BLK
ORN
GRY
GND of JP4
D- of JP4
D+ of JP4
DDC2-RS / 4-RS - JP4 Connector
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