Image Sensing Systems Inc. RTMS-K4 Benutzerhandbuch
RTMS
™ User Manual for Model K4
Draft 1
Page 8
Connecting RTMS to Remote Systems
RTMS may be connected to a remote traffic data collection system over private telephone lines using
modems.
modems.
Multiple RTMS units connecting to remote systems, including EIS Cluster or NEWS systems must be
placed in their Polled mode and will require the use of modems.
placed in their Polled mode and will require the use of modems.
Modem Cables
A cable connecting the RTMS RS-232 port to the modem’s RS-232 port must provide the following:
• male connectors at both ends
• provide the functions listed below
• provide the functions listed below
A modem’s RS-232 ports will usually employ DB9 or DB25 connectors.
Table 4 – Modem Cabling
To Modem
Function From
RTMS
DB9
DB9 DB25
Transpose Tx and Rx
Pin 2
Pin 3
Pin 3
Pin 3
Pin 2
Pin 2
Pin 2
Pin 3
Pin 3
Connect Ground
Pin 5
Pin 5
Pin 7
CTS to RTMS (Internal storage only)
Pin 7
Pin 8
Pin 5
Modem side control line looping
CTS to RTS (Standard RTMS)
DCD to RTS (Internal storage option)
DSR to DTR
DCD to RTS (Internal storage option)
DSR to DTR
Pin 8 to Pin 7
Pin 1 to Pin 7
Pin 6 to Pin 4
Pin 1 to Pin 7
Pin 6 to Pin 4
Pin 5 to Pin 4
Pin 8 to Pin 4
Pin 6 to Pin 20
Pin 8 to Pin 4
Pin 6 to Pin 20
Standard RTMS
RTMS with Internal Data Storage Option
2
3
9
5
6
2
3
6
5
9
7
8
13
7
8
6
5
4
3
2
14
20
25
1
2
3
5
6
9
DB-9 Male
Rear View
DB-9 Male
DB-9 Male
Modem side
DB-25 Male
Rear View
Rear View
Rear View
1
RTMS side
2
3
5
6
9
2
3
5
6
9
7
8
13
7
8
6
5
4
3
2
14
20
25
1
2
3
5
6
9
DB-9 Male
Rear View
DB-9 Male
Rear View
DB-9 Male
Rear View
Modem side
DB-25 Male
Rear View
1
RTMS side
ns
Figure 9 – RTMS to Modem connectio
EIS Electronic Integrated Systems Inc.