Serial Data Interfaces; Com1 (Serial) Connection - GE MDS SD Series Technical Manual

Telnet may also be used on this connector, and provides the same menu-based user interface
available via . If you wish to use Telnet for radio control, refer to the SD Serial/Telnet
COM1
Management Supplement, Part No. 05-6193A01.
Various options are available for passing Ethernet data on this connector, allowing system ad-
ministrators to optimize the configuration for maximum narrowband efficiency, based on the op-
erating characteristics of their system.

4.7 Serial Data Interfaces

and on the front panel serve as the serial interface ports for radio management and
COM1 COM2
payload data, respectively. The following sections identify the pin functions used on each inter-
face. These ports are user-configurable for specific applications. The procedures for changing
their default operation are provided later in this guide.
NOTE Not all PCs have a serial port. If one is not available, a USB-to-Serial adapter and ap-
propriate driver software may be used to provide serial connectivity. These adapters are
available from several manufacturers, including GE MDS.

COM1 (Serial) Connection

The default factory settings for the radio's
agnostics of the radio via a serial connection to a PC.
such as output power, modem type and operating frequency of the radio, using text commands.
COM1 management provides an alternative to the web-based SD Device Manager, accessible
via the Ethernet RJ-45 port (see Page 20) when Ethernet connectivity is not available. If you
MDS 05-4864A01, Rev. I
Figure 18. Ethernet Port (RJ-45) Pinout
(As viewed from the outside of the unit)
Table 6. Ethernet Port
(IP/Ethernet) Pinouts
Pin Functions
1 Transmit Data (TX)
2 Transmit Data (TX)
3 Receive Data (RX)
4 Unused
5 Unused
6 Receive Data (RX)
7 Unused
8 Unused
port (Figure 19) can be for management or di-
COM1
SD Series Technical Manual
Ref.
High
Low
High
Low
may be used to set basic parameters
COM1
21