Communication Wiring; Cmnet Wiring - Liebert 232 User Manual

Procedure
1. Turn the SiteGate-232's power switch OFF.
2. Set the module's baud rates and console port settings using the 8-position dip switch (see Figure 1
for switch location).
3. Turn the SiteGate-232's power switch ON.

Communication Wiring

CMnet Wiring

NOTE: Only one SiteGate-232 may exist on a CMnet.
NOTE: The EIA-232 connection can be 50 ft. (15.24 m) maximum.
1. Turn the SiteGate-232's power switch OFF.
2. Check the network communication wiring for shorts and grounds.
3. Terminate the network (CMnet) communication wires (#18 twisted pair) to the module's screw
terminals indicated in Figure 8.
NOTE: Be sure to follow the same wiring polarity as established throughout the rest of the network.
4. Turn the SiteGate-232's power switch ON.
5. Verify proper network communication using Netscan software.
Rev. (08-JULY-98)
Power
Off O n Power
Switch
Supply
dcd
1
Power
n/ c
6
Console
2 r x
Indicator
+10v
7
Port Us e sin gle Cl ass 2
3 t x
sou r c e o nl y
n/ c
8
dtr
4
Cl as s 2
n/ c
9
50 -6 0 Hz
5 gnd
2 4 VAC
0.4 Amp
Us e c opp er
co nd uc to r on ly
SiteGate-232
Tx
Rx
Cons ole 2
Optional Shield
Forma t
Auxiliary
b utton
Device
Port
Baud 156K
CM net baud 9600
Console 1 baud 9600
Baud 9600/38.4K
Console 2 baud 9600
Access
Run
Error
port
CM net Receiv e
Cm net Trans m it
Cons ole 2 recieve
Console 2 transm it
Cons ole 1 recieve
Console 1 transm it
Figure 8: Power and communications wiring
24VAC
G ro und
Line
24 VAC
Voltage
38.4K
38.4K
38.4K
O pti ona l Shie ld
Net -
CMne t
co nn ec t i on
Net +
#18 Twisted pair
to CMnet
8
© 1996-98 Liebert Corporation