Installation guide
D6600 NetCom
Operation
D6600 NetCom System Guide
4998122712D Page 18 © 2004 Bosch Security Systems
3.3 Datagram Type Differences for NetCom
Software version 5.5C or greater must be installed in the network device (C900TTL-E, D9133TTL-E, or D6680) for the
Datagram Type function.
Software version 1.5D or greater must be installed in the DX4020.
3.3.1 Datagram 02
This datagram is only supported on the COBOX-FL version of the D6680.
This datagram type is only used in the D6680. This datagram uses the IP Address as well as the Port Number to identify
and ACK packets from the receiver to the field devices which allows multiple devices to be installed behind a single
outgoing IP Address. This datagram type requires that CPU version 01.02.01 or higher needs to be installed and in the
receiver parameter 6.8.6 MUST be programmed for a 1.
To use this datagram type, program in the following order:
1. Be sure that D6200 version 1.20 or higher is installed.
2. Be sure that the D6600 CPU version 01.02.01 is loaded in the receiver.
3. With the D6200 software, select ‘Read/Manage Network Configuration from Receiver’.
4. Click on the ‘6.8 Global Parameters’ tab.
5. Change the selection of 6.8.6 6600 Datagram Type to a 1.
6. Send the changes to the receiver and close the window.
7. Select NetCom - Network Utilities – Network Device Setup and click on the Telnet to Device tab.
8. Type or find the IP Address of the D6680 in the list and Telnet to the D6680.
9. After establishing the Telnet session, select the channel(s) that you are using by pressing 1 or 2 and pressing Enter.
10. Press Enter until at the selection of Datagram and type 02 and press Enter. If both channels are being used, be sure
that both channels are changed.
11. Save the settings and exit the setup of the D6680.
3.3.2 Datagram 07
This datagram is only supported on the E2-RAD version of the Network Interface Modules (NIMs).
This datagram type is only used in the NIM of the network device (C900TTL-E, D9133TTL-E, or DX4020). The
datagram type allows the Source and Destination ports to be set independently. This use of a different source port allows
NAT (Network Address Translation) tables of routers or firewalls to direct packets to the correct NIM of the field device.
The way that a NAT table works is explained below:
To use this datagram type, program in the following order:
1. Telnet to the NIM of the field device as is described in the appropriate network device (C900TTL-E, D9133TTL-E, or
DX4020) installation guide.
2. Select channel 1 of the NIM.
3. At the Port Number selection, enter a source port that is not being used by another NIM on the same network (such
as 7701, 7702, 7703, etc.). Keeping a list of the NetCom modules on a particular network along with the source ports
of those modules will ensure that duplicate source ports are not used.
4. At the Datagram selection, enter 07 and press Enter.
5. At the Remote Port selection, enter the port number that is used in the D6680 for the D6600.
6. Save the settings and exit the setup of the NIM.
Outgoing packets from a network over a single IP Address go through a router or firewall software that uses NAT tables
to keep track of which packets come from which internal IP Addresses. The NAT table insures that the returning packets
for a device are forwarded back to the device that sent out the first packet. An example of this is multiple PCs on a
network connecting to the internet through a single IP Address from an ISP. By using the same idea, NetCom devices
can perform the same function.