GE MDS entraNET 900, Техническое руководство

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05-4055A01, Rev. E MDS entraNET Technical Manual 189
8.3.3 COM2 Port
Connect a terminal device to the transceiver
COM2
port (RJ-45) for
payload data connection. Pinout information for the COM2 port is
provided in
Figure 8-5 and Table 8-3 .
Figure 8-5. COM2 Port (DCE)
(viewed from the outside of the radio )
8.4 TECHNICAL SPECIFICATIONS
Below are the technical specifications for entraNET 900 and 2400
models. Specifications that are unique to a particular model are
identified by frequency range (900 MHz or 2400 MHz).
GENERAL
Data Rate: 106 kbps over the air
Frequency Band: 900 MHz models: 902–928 MHz ISM band
2400 MHz models: 2401.6-2477.8 MHz in the
following bands:
2401.6-2427.0 MHz (Band A)
2427.2-2452.6 MHz (Band B)
2452.8-2478.2 MHz (Band C)
Configurations: Access Point, Remote
Spreading Mode: Frequency Hopping Spread Spectrum (FHSS)
Frequency Channels: Selectable; 64 to 128 in increments of 16
MTBF (Reliability): Consult factory for on-file data
Startup Time: AP: approximately 30 sec
Remote: approximately 1 sec
Time Required for Remote
to Connect with AP:
Typically less than 1 sec
1 2 3 4 5 6 7 8
Table 8-3. COM2 Port, EIA-232 Interface
Pin Functions COM2 Port
(DCE)
1 Unused
2 Data Carrier Detect (DCD) Out
3 Data Terminal Ready (DTR) In
4 Signal Ground (GND) —
5 Receive Data (RXD) Out
6 Transmit Data (TXD) In
7 Clear-to-Send (CTS) Out
8 Request-to-Send (RTS) In