POTSwap User Guide JA16-EVDO-UM
Page 5 Rev: P07 Date: 08/01/16
© Copyright 2016 Janus Remote Communications
Specifications subject to change without notice
All Rights Reserved See website for latest revision. Not intended for life support applications.
3 Operation
3.1 Set-Up:
Operating the POTSwap with voice (telephone) equipment can be achieved through the following steps:
1. Gather the required equipment:
• POTSwap
• Power Supply - This can be hard-wired from a user supplied power source via the terminal block header (See section 9 -
Compatible Terminal Block Connectors) or using the optional wall transformer (See section 10 - Accessories).
• Cellular antenna - A 2-band (‘dual-band’) CDMA cellular antenna is recommended. An optional cellular antenna is
available (See section 11 - Accessories).
• GPS antenna - On units equiped with a GPS antenna connector, a GPS antenna may be connected. (See section
11 - Acessories.)
• The POTSwap requires an activated cellular account with a cellular carrier (Verizon). You must provide the MEID
number of the POTSwap to the cellular carrier in order to establish an account. The MEID number is printed on
the POTSwap label, and is available through the IDENTIFY command from the terminal menu (see section 4 -
Configuration).
2. Connect a cellular antenna to the SMA connector labeled ‘CELLULAR’. This can be a local antenna or a
remote antenna connected by a coaxial cable. [Optional] Connect a GPS antenna to the SMA connector
labeled ‘GPS’. (See section 7 - GPS.)
3. Connect power to the unit.
Once powered, the unit should show a connection to the cellular carrier within a minute. This will be indicated
by a rapidly flashing GREEN ‘STATUS’ LED, a blinking ‘CELLULAR’ LED, and a steady signal strength
indication on the Received Signal Strength LED stack.
4. A POTSwap with a newly activated account with a cellular carrier must first be ‘provisioned’. This can be
accomplished by dialing *228 from a telephone device attached to the POTSwap (see section 6 - Provisioning).
3.2 Voice Operation
Voice operation requires a standard voice telephone device to be connected to the POTSwap.
3.2.1 Placing calls:
When the connected telephone device is taken off hook, the POTSwap will present an audio dial tone signal.
Dialing can proceed with up to 30 digits being accepted. If the Dialing Tone Timeout (30 second default) elapses
before the first digit is dialed, the dialing session is ended by an Open Switching Interval (900 millisecond default).
If the Dialing Digit Timeout (4 second default) elapses after a dialed digit, dialing is concluded and a call to the
dialed number is placed. At any time the number sign (‘#’) can be dialed and the call is placed immediatly,
avoiding the Dialing Digit Timeout. Note that if Fixed Format Dialing is enabled, the dialed number must consist of
a ten digit phone number that includes the area code, or an eleven number when the first digit is a ‘1’.
Firmware versions earlier than 150904 only allow dialing fixed format, 10 or 11 digit numbers.
The POTSwap CANNOT be used to dial 911.
Telephone devices that automatically take the phone off-hook and place a call to a fixed telephone number are
compatible with the POTSwap. Dialing digits should not be sent faster than 100 ms per digit, with a minimum
DTMF tone duration of 45 ms.
The POTSwap is compatible with DTMF dialing only. Pulse dialing will not work.
TELEPHONE
MOBILE
NETWORK
PSTN
CELLULAR
VOICE
TELEPHONE
POTSwap
Figure 2 Voice Operation
