SSM-LE Series
Operations Manual
Eberle Design Inc.
Page 28
Pin
Function
I/O
7
CTS
I
8
RTS
O
9
NC
-
If the monitor DTR Enable option is selected (See
EDI ECcom Software Operations
Manual
) the Data Terminal Ready (DTR) input must be in the high state (>4 Vdc) for the
monitor EIA-232 port (DCE device) to be active. DCD, DSR, CTS, and RTS are provided
for compatibility with Data Terminal Equipment (DTE device) control signals. If required by
the Data Terminal Equipment device (Personal Computer), DCD may be driven high by
inserting internal jumper E8. If the Data Terminal Equipment device uses CTS instead of
DTR to control data flow, insert internal jumper E9 and remove internal jumper E7.
8.3.1 EIA-232 CABLE TO A PC
A typical cable assembly for a DB-9 connector on the PC is a straight through connection
as follows:
PC DB-9
Monitor DB-9
RX pin 2
connect to
TX pin 2
TX pin 3
connect to
RX pin 3
DTR pin 4
connect to
DTR pin 4
(optional)
GND pin 5
connect to
GND pin 5
A typical cable assembly for a DB-25 connector on the PC would be as follows:
PC DB-25
Monitor DB-9
RX pin 3
connect to
TX pin 2
TX pin 2
connect to
RX pin 3
DTR pin 20
connect to
DTR pin 4
(optional)
GND pin 7
connect to
GND pin 5
8.4 ETHERNET LAN PORT
The Ethernet port must be configured with specific network parameters such as an IP
address and Subnet Mask. The network port parameters are set or changed using the EDI
ECcom
Signal Monitor Communications software. See the "
EDI ECcom Software
Operations Manual
" for details.
The factory default network settings are: IP Address = 192.168.1.100 and Subnet Mask =
255.255.255.0
8.4.1 ETHERNET LAN CABLE
If the connection is from the monitor to a switch or hub, a standard 8-pin RJ-45 connector
LAN cable is needed. If the connection is from the monitor directly to a network adaptor
(PC), a cross-over or patch cable is needed.
