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9XTend ‐ PKG ‐ E? ? Ethernet ? RF ? Modem ? – ? Product ? Manual ? v2.x4x ? [2007.01.04]
1.3. External Interface
1-01a. Power Switch
Figure ? 1 ‐ 01. Front ? View
1 ‐ 01d. ? RJ ‐ 45 ? port
1 ‐ 01c.
RSSI ? LEDs ? (all ? green)
1 ‐ 01e.
Power
Move Power Switch to the ON (up) position to power the XTend
Ethernet RF Modem.
1-01b. I/O & Power LEDs
LEDs indicate modem activity as follows:
Yellow (top LED) = Serial Data Out (to host)
Green (middle) = Serial Data In (from host)
Red (bottom) = Power/TX Indicator (Red light is on when
powered; it pulses on/off briefly during RF transmission.)
Connector*
1 ‐ 01b.
I/O ? & ? Power ? LEDs
1 ‐ 01a.
Power ? Switch
1-01c. RSSI LEDs
RSSI LEDs indicate the amount of fade margin present in an active
wireless link. Fade margin is defined as the difference between the
incoming signal strength and the modem's receiver sensitivity.
3
LEDs ON
=
Very Strong Signal (> 30 dB fade margin)
* ? The ? Ethernet ? RF ? Modem ? does ? not ? sup ‐
port ? Power ‐ over ‐ Ethernet ? (PoE). ? The ?
device ? cannot ? be ? powered ? directly ? from ? a ?
PoE ? port ? on ? a ? compatible ? hub.
2
1
0
LEDs ON
LED ON
LED ON
=
=
=
Strong Signal (> 20 dB fade margin)
Moderate Signal (> 10 dB fade margin)
Weak Signal (< 10 dB fade margin)
However, ? it ? may ? be ? useful ? to ? send ? power ?
on ? the ? unused ? wires ? of ? the ? CAT ‐ 5 ? cable ? in ?
a ? situation ? where ? the ? radio ? will ? be ?
mounted ? in ? a ? location ? that ? optimizes ? radio ?
coverage, ? but ? may ? not ? have ? a ? power ? outlet ?
nearby. ? There ? are ? several ? third ? party ?
devices ? available ? that ? can ? inject ? the ? power ?
onto ? the ? cable ? and ? then ? remove ? it ? at ? the ?
1-01d. RJ-45 Ethernet Port
Standard Female RJ-45 connector is used to connect unshielded
twisted-pair CAT5 cabling.
1-01e. Power Connector*
7-28 VDC power connector
remote ? side.
1-02a. Antenna Port
Figure ? 1 ‐ 02. Back ? View
1 ‐ 02a.
Antenna ? Port
1 ‐ 02b.
Reset ? Switch
The antenna port is a 50 Ω RF signal connector for connecting to an
external antenna. The connector type is RPSMA (Reverse Polarity
SMA) female. The connector has threads on the outside of a barrel
and a male center conductor.
1-02b. Reset Switch
The Reset Switch is used to reset (re-boot) the RF modem and force
the modem into AT Command Mode.
To reset (re-boot) the modem: Press and then immediately release
the Reset Switch.
To force the modem into AT Command Mode (at the default through-
put data rate of the modem): Press the Reset Switch and keep it
depressed for at least two seconds, then release.
? ? 2007 ? MaxStream, ? Inc., ? Confidential ? & ? Proprietary ?‐? All ? Rights ? Reserved ?
????? 6
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