Campbell Com100 Instruction Manual - 6. Communication Notes
COM100 Cellular Phone Package
8
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PS12 POWER SPP
WIT 12V CARGING REGATOR
MADE IN SA
WARNING:
PERMANENT DAMAGE TO RECHARGEABLE
CELLS MAY RESULT IF DISCHARGED
BELOW 10.5 VOLTS
NCTION
INT
EXT
AT
CG
O
ON
CG
CG
+12
+12
PS12 BATTERY
EXTERNAL BATTERY - DO NOT USE WITH
INTERNAL RECHARGEABLE BATTERY
CHARGE VOLTAGE PRESENT
INPUT FROM CHARGER OR SOLAR PANEL
16-26 VDC OR AC RMS: POSITIVE TO
EITHER TERMINAL, NEGATIVE TO OTHER
POWER TO DATALOGGER OR
12V PERIPHERALS
SE
DIFF
G
G
H
L
1
2
1
AG H
L AG H
L AG E1 AG E2 G
3
4
2
5
6
3
SE
DIFF
G
G
H
L
7
8
4
AG H
L AG H
L AG E3 AG G
G
9
10
5
11
12
6
P1 G P2
G C8 C7 C6 C5 C4 C3 C2 C1
G 12V 12V
SDM
5V 5V G
G
SW 12V
SW 12V CTRL
Logan, Utah
G 12V
G 12V
POWER
IN
CR10X WIRING PANEL
MADE IN USA
WIRING
PANEL NO.
EARTH
GROUND
CS I/O
DO NOT
EAT
UNITED
DESIC
CANTS
-GATES
101CHRISTINE, BELEN, NOW MEXICO 87002
DESI PAK
SPECIFICATION MIL-D-3464 TYPE I &II
REACTIVATION TIME IN-BAG 16 HOURS AT 250 F
DESICCANT
ACTIVATED
BAGGED FOR
CONTENTS
4
UNITS
PACKAGE USE
AND STATIC
DEHUMIDIFICATION
DO NOT
EAT
UNITED
DESIC
CANTS-G
ATES
101CHRISTINE, BELEN, NOW MEXICO 87002
DESI PAK
SPECIFICATION MIL-D-3464 TYPE I &II
REACTIVATION TIME IN-BAG 16 HOURS AT 250 F
DESICCANT
ACTIVATED
BAGGED FOR
CONTENTS
4
UNITS
PACKAGE USE
AND STATIC
DEHUMIDIFICATION
DO NOT
EAT
UNITE
D DESIC
CANTS
-GATE
S
101CHRISTINE, BELEN, NEW MEXICO 87002
DESI PAK
SPECIFICATION MIL-D-3464 TYPE I &II
REACTIVATION TIME IN-BAG 16 HOURS AT 250 F
DESICCANT
ACTIVATED
BAGGED FOR
CONTENTS
4
UNITS
PACKAGE USE
AND STATIC
DEHUMIDIFICATION
DO NOT
EAT
UNITED
DESIC
CANTS-G
ATES
101CHRISTINE, BELEN, NEW MEXICO 87002
DESI PAK
SPECIFICATION MIL-D-3464 TYPE I &II
REACTIVATION TIME IN-BAG 16 HOURS AT 250 F
DESICCANT
ACTIVATED
BAGGED FOR
CONTENTS
4
UNITS
PACKAGE USE
AND STATIC
DEHUMIDIFICATION
O
O
CAMPBELL
SCIENTIFIC
INC.
COM200 MODEM
S/N
0002
MADE IN USA
GND
RING
TIP
Complies with Part 68, FCC rules. FCC Registration No. B9QUSA-75378-MM-T
Ringer Equivalence 0.6B. Required Connector USOC RJ11C. Canadian Load No.5
This equipment complies with the requirements in Part 15 of FCC Rules for Class A
computing device. Operation of this equipment in a residential area may cause
unacceptable interference to radio and TV reception requiring the operator to take
whatever steps are necessary to correct the interference.
FIGURE 5-2. Typical Field Installation (Antenna not Shown)
6. Communication Notes
Once consistent cellular coverage has been established on a stationary phone,
interference should not be a problem. Interference on mobile phones is more
easily encountered. The local cellular company can verify cellular coverage of
a specific area.
When a transceiver moves, the call may be transferred from one cell to another.
Transceivers generally stay on-line during these transfers, and data are transmitted
properly. However, if all the cells are busy or if too much interference occurs, the
call will be dropped. This causes the transceiver and the field modem to hang up.
Possible sources of interference that should be avoided include heavy
construction sights, tunnels, transmitting from the fringes of an area, and
power transmission lines.