Install logger(s)
For a GP1 you will need a cable of type
GP1-EXT-xx
to connect to the Modem Box.
For a DL6 you will need a cable of type
GP1/DL6-M8
.
Connecting multiple loggers to the GSM Modem Box
The GSM modem can connect to up to 10 GP1 or
DL6 loggers via the GP1 network cable using the
4-way expansion block
GP1-EB/4
(right).
Factors to consider:
the maxiumum permitted length of extension
cable,
the effect of multiple GP1 loggers and logging
frequency on the GSM Modem Box battery life.
Network Cabling Options
Example of a network cabling scheme with GSM Modem Box.
GSM-BX1/xx
GSM Modem Box
GP1-EXT-xx
1, 5,10 or 25 m extension cable
5-pin M8 male, 5-core cable to M8 female
GP1-EB/4
4 way junction box.
5-pin M8 male, 2m 5-core
cable, four M8 female sockets
loggers
See also:
Using multiple loggers on a Network
.
Location
:
From the Start menu select Programs, DeltaLINK-PC, Document Library.
Maximum permitted length for extension cables
The key factor is the
total cumulative cable length for all loggers
added together,
which can be up to 60m with the Siemens TC35i modem. So you could have one
logger at 60m, or two each on 30m, or ten on 6m each, and so on.
Effect of GP1 loggers on the GSM Modem Box battery life
GP1 loggers will take some power from the GSM Box battery even when not logging.
Their impact on battery life is shown under
Battery Life Considerations
on page 20.
How to disconnect the external power supply to GP1 loggers
The supply of external power to GP1 loggers via the external cabling network from the
GSM Modem Box battery can be disconnected at the DIN rail.
Disconnect the cable labelled External Power. It has “black” and “white” wires and is
clearly indicated in the
Wiring schemes
on pages 21 to 22.
© 2006 Delta-T Devices Ltd
Page 19
