© 1996-98 Liebert Corporation
3
Rev. (08-JULY-98)
Introduction
The SiteGate-232 is part of the Liebert SiteScan gateway family and provides communications between
a workstation and a control module network (CMnet) consisting of fewer than 50 modules. The
SiteGate-232 provides two EIA-232 Console Ports for connecting a workstation and/or a modem. The
console ports are switch selectable for baud rates up to 38.4k bps.
Communication between the SiteGate-232 and the CMnet is provided through a EIA-485 port. The
SiteGate-232 does not have a Direct Network (DN) connection.
NOTE: You must use FB Link v2.7 or later in order to transfer to any module containing Exec 6.0 or
later.
Specifications
Power: 24 VAC ±10%, 50-60 Hz, 7.2 VA.
Console Ports: (2) EIA-232 serial ports (D-sub 9-pin connector, and 5-pin pluggable screw terminal
block) switch selectable for 9600 or 38.4k bps.
CMnet Port: EIA-485, twisted pair, 9600/38.4k bps, optically isolated. (156k bps to be supported
by a future version of the module driver).
Status Indication: Visual (LED) status of EIA-232 communication, CMnet communication, running,
errors, and power.
Temperature Range: 0-130 °F (-17.8 to 54.4 °C).
Humidity Range: 10%-95% relative humidity, non condensing.
Memory: 1 MB FLASH memory for module driver storage and 1024 kB of battery backed RAM.
Figure 1: SiteGate-232 Module Dimensions and Layout
CMnet baud 9600
Console 1 baud 9600
Console 2 baud 9600
38.4K
38.4K
38.4K
SiteGa te-232
EIA-232
Console
Port 1
EIA-232
Consol e
Port 2
Auxiliary
Device
Port
CMnet
Baud Rate
Jumper
Access
Port
LEDs
6 1/4"
CMnet
Connection
1 5/8"
Addressing
Dip Swit ch
Manual Format
Button
7 1/8"
Power
Switch
1"
Console
Port
n/c
+10v
n/c
n/c
6
7
8
9
1
2
3
4
5
dcd
rx
tx
dtr
gnd
Power
Indicator
Power
Supply
Power
Switch
Tx
Rx
Consol e 2
Auxiliar y
Device
Port
Optional Shield
Baud 156K
Baud 9600/38.4K
Access
port
Run
Error
CMnet Recei ve
Cmnet Transm it
Console 2 recieve
Console 2 transmit
Console 1 recieve
Console 1 transmit
Format
button
Optiona l Shield
Net -
Net +
CMnet
connec tion
Off On Ground
24 VAC
Use single Class 2
source only
Class 2
50-60 Hz
24 VAC
0.4 Amp
Use copper
conductor only