Com1 (Serial) Connection - GE MDS SD4A Technical Manual

MDS 05-4846A01, Rev. F

COM1 (Serial) Connection

The default factor settings for the radio's
it for management or diagnostics of the radio via a serial connection to
COM1
a PC. may be used to set basic parameters such as output power,
modem type and operating frequency of the radio.
This method provides an alternative to the web-based SD Device Man-
ager, accessible via the Ethernet RJ-45 port (see Page 21) when Ethernet
connectivity is not available. If you wish to use serial or Telnet control
instead, refer to the SD Serial/Telnet Management Supplement, Part No.
05-6193A01.
5 1
9 6
For typical applications, a straight-through DB-9 cable may be used for
PC management. If desired, a cable may be constructed as shown in
Figure 18, using Pins 2 (RXD), 3 (TXD), and 5 (Ground). Table 7 lists
COM1
all pins.
2 RXD
DB-9 MALE
3 TXD
<
(RADIO SIDE)
5 GND
Figure 18. COM1 Wiring for PC Management
Table 7. COM1 Pin Descriptions
Pin Radio
Number Input/ Pin Description
Output
1 -- No function
2 OUT RXD (Received Data)—Supplies received data to the
connected device.
TXD (Transmitted Data)—Accepts TX data from the
3 IN
connected device.
4 -- No function
5 -- Ground—Connects to ground (negative supply potential) on
chassis.
SD Series Technical Manual
COM1
port (Figure 17) assigns
Figure 17. COM1 Connector (DB-9F)
As viewed from outside the unit
>
RXD 2
DB-9 FEMALE
TXD 3
(COMPUTER)
GND 5
23