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Wireless Modems — Modem Hand-switch ZH0457
The Modem Hand-switch ZH0457 serves to supply power from the 12V
Battery QB0051 to the Siemens M1 Mobile Dataphone.
Fig.9 Modem Hand-switch ZH0457
The M1 is supplied with a split cable for supply from 12V power (and
for the antenna). The power supply cable ends in three wires: a red
(+12V), a brown (0V) and a violet (called “ignition”).
The Modem Hand-switch ZH0457 provides a connector for the 12V and
a means of switching the “ignition” since this must be done in the proper
sequence for the M1 to work.
Connecting the M1 to the ZH0457
1. Open the ZH0457 by removing the four screws at the bottom.
2. Take out the rubber seal and the nylon strap lying inside the ZH0457.
3. Feed the M1 power cable (with the 3 wires) through the rubber seal
(pull the thick end through first).
4. Put the 3 wires through the hole in the ZH0457 base.
5. Screw the red wire into the connector block opposite the red wire
already connected.
6. Screw the violet wire into the connector block opposite the violet
wire already connected.
7. Screw the brown wire into the connector block opposite the brown
wire already connected.
8. Put the rubber seal (and the cable) through the hole in the ZH0457
base.
9. Fasten the rubber seal and cable by mounting and tightening the
nylon strap.
10.Reassemble the ZH0457 and fasten the four screws.
Connecting the Power Supply to the M1:
The 12V battery QB0051 must be in charged condition and equipped
with the 12V Cable AQ1698.
1. Connect the ZH0457 to the socket on the AQ1698.
2. Make sure that the switch on the ZH0457 is in the Off position.
3. Connect the M1 cable to the M1 Mobile Dataphone.
4. Press the switch on the ZH0457 to select the On position — the light
in the switch should turn on.
5. The M1 is now powered from the 12V battery.
6. To remove power from the M1, press the key on the ZH0457 to select
the Off position.
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