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ARA-1 Operations Manual

INTEROPERABILITY NOW

3-13

RTP packet. Having some hang time prevents the radio from being unkeyed momentarily in the
absence of a small number of packets.

When selected, the final setting option—

Disable—

never allows any audio received from the

network to key the attached radio. This can be useful in situations where one intends only to
monitor a radio’s receive signal.

3.3.5.2

Network COR VOX/VMR Sensitivity

The

Network COR VOX/VMR Sensitivity

setting performs the same function as the

Radio COR

Sensitivity

, but applies to audio coming from the SIP network. It specifies the level of audio that

is required to be considered “valid” and, therefore, to cause the radio to transmit the audio. If you
are using VOX or VMR and the transmitter is not activating reliably you may need to increase
the sensitivity. If the transmitter is being activated by background noise, you may need to
decrease the sensitivity.

3.3.5.3

Network COR VOX/VMR/Packet Hang Time

The

Network COR VOX/VMR/Packet Hang Time

setting performs the same function as the

Radio

COR Hang Time

, but applies to the audio coming from the SIP network. If the transmitter

deactivates or “drops out” between words or syllables, you may need to increase the hang time.
For the most natural conversation, do not set the hang time to any amount longer than necessary
to remove the drop outs.

3.3.6

Audio Adjustments

3.3.6.1

Transmit Audio Delay

In some specific applications (such as interfacing to a trunked radio system) it may be necessary
to delay the audio going to the radio. The amount of delay is set in the

Transmit Audio Delay

field. See Section 5.6 of the

System Troubleshooting

section for more information.

3.3.6.2

Receive Audio Boost

The audio input level is adjusted via a control on the rear panel. The instructions for setting this
adjustment can be found in Section 2.8.3. If additional received audio gain is necessary, it may
be selected here, with the additional gain added in the digital domain.

When the radio settings have been made, click

Save

to save them. Then click

Dialing

to go to the

Dialing

page (shown in Figure 3-6).

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Содержание ARA-1

Страница 1: ...ation Manual ARA 1 Radio to SIP Interface Designed and Manufactured by JPS Interoperability Solutions 5800 Departure Drive Raleigh NC 27616 919 790 1011 Email sales jpsinterop com support jpsinterop c...

Страница 2: ...ely to cause harmful interference in which case users will be required to correct the interference at their own expense CAUTION Changes or modifications to this equipment not expressly approved by JPS...

Страница 3: ...the Distant Side 1 9 1 9 SPECIFICATIONS 1 10 1 10 EQUIPMENT AND ACCESSORIES SUPPLIED 1 11 1 11 OPTIONAL EQUIPMENT NOT SUPPLIED 1 12 2 INSTALLATION 2 1 2 1 GENERAL 2 1 2 2 UNPACKING AND INSPECTION 2 1...

Страница 4: ...21 4 OPERATION 4 1 4 1 GENERAL 4 1 4 2 FRONT PANEL INDICATORS 4 1 4 2 1 Power LED 4 1 4 2 2 Link Active LED 4 1 4 2 3 Channel Active LED 4 1 4 2 4 Audio Input LED 4 1 4 3 ARA 1 OPERATION 4 1 4 3 1 Ope...

Страница 5: ...3 20 FIGURE 4 1 CALL MANAGEMENT PAGE 4 3 FIGURE 5 1 SHOOT VERSUS DON T SHOOT 5 4 FIGURE 5 2 WHY AUDIO DELAY IS CRUCIAL 5 5 List of Tables FIGURE 1 1 ARA 1 BASIC BLOCK DIAGRAM 1 2 FIGURE 1 2 EXAMPLE O...

Страница 6: ...us or similar setting PTT Push to talk A signal to a radio that activates the transmit function and controls the actual transmission of radio frequency energy over the air Also called a keyline SIP Se...

Страница 7: ...c shutdown or maintenance Startup upon power on is typically less than 10 seconds 1 2 1 General The ARA 1 provides a seamless interface between a radio and an IP based network using SIP This brings to...

Страница 8: ...on could be a simple two party call or a multimedia conference session SIP focuses on the setup modification and termination of sessions allowing versatility of the format and content of the data bein...

Страница 9: ...ne ATA pairs or radio ARA 1 pairs in the PBX When a SIP Phone user wants to place a call to another SIP Phone he or she can simply dial that phone s extension The same process is followed to place a c...

Страница 10: ...e illustrated in Figure 1 3 The network employed can be any type of IP based network including the Internet Figure 1 3 Examples of ARA 1 Use Over Internet The first setup in Figure 1 3 shows a connect...

Страница 11: ...cked up by the radio are relayed through the ARA 1 and more importantly transmissions through the ARA 1 are sent to all radios that can pick up this transmission In many cases the ARA 1 and radio will...

Страница 12: ...DTMF input not terminated by a pound digit invokes an internal speed dial calling guide that is set up within the ARA 1 this calling guide associates incoming DTMF sequences with the destination IP ad...

Страница 13: ...nversation is limited to Half Duplex COR A signal that tells when a radio or other communications device is receiving a valid signal an output from the device PTT A signal that tells a radio or other...

Страница 14: ...e that the local radio is unsquelched These include RTP Header IP packets include an RTP extension header that JPS created for this purpose When the extension is detected by the distant ARA 1 it knows...

Страница 15: ...l when there are JPS SIP devices at both ends or the use of the SIP extension header has been built in to another vendor s equipment The JPS SIP devices also allow combinations of the above these are...

Страница 16: ...ection Up to 100 VDC Radio PTT and AUX Outputs Output Type Open drain 47k ohm pull up to 5V Maximum Sink Current 100 mA Max Open Circuit Voltage 60 VDC Network Interface Interface Type 10 100BASE T Et...

Страница 17: ...t Number Description 1 0313 070000 Network Cable 6 ft 1 0313 080515 Audio Crossover Adapter for use with JPS radio interface cables Table 1 3 Equipment and Accessories Supplied European Version ARA 1...

Страница 18: ...00200 Note This manual available for download at no charge from jpsinterop com website Generic Radio Interface Cable unterminated at radio end 15 ft 5961 291115 Interface cables for a very wide range...

Страница 19: ...90 1011 or by FAX at 919 865 1400 or email at support jpsinterop com Upon receipt of this information JPS will arrange for repair or replacement of the equipment 2 3 Reshipment of Equipment If it is n...

Страница 20: ...unit You may have to contact the network administrator for your organization to obtain this information NOTE Operation of the ARA 1 is not possible without this information 2 Provide the proper primar...

Страница 21: ...h other heat generating equipment the use of a rack blower is suggested to keep the cabinet interior temperature within specifications NOTE If the ARA 1 is installed in a high RF environment such as a...

Страница 22: ...ARA 1 Operations Manual 2 4 INTEROPERABILITY NOW Figure 2 1 Outline Dimensions...

Страница 23: ...RA 1 Operations Manual INTEROPERABILITY NOW 2 5 Figure 2 2 Front and Rear Panel Views DC IN IN TP J6 J7 AUDIO CONTROL OUT LVL IN LVL J3 NETWORK J4 RS 232 S N SW1 DEFAULTS DB 15 Female DB 9 Female RJ 4...

Страница 24: ...d to an AC power source that utilizes a UPS uninterruptible power system If the overall site does not have UPS capability the ARA 1 should be plugged into a smaller UPS such as those used for personal...

Страница 25: ...unbalanced balanced audio issue properly 2 8 3 Audio Level Adjustment Potentiometers and Input Test Point The audio input level to the ARA 1 is set by adjusting the IN LVL control on the rear panel Wi...

Страница 26: ...h the one found on the ACU 1000 If you are designing a cable based on Table 2 2 or if you are connecting the ARA 1 directly to an ACU 1000 then you do not need the Audio Crossover Adapter 2 8 4 Networ...

Страница 27: ...200 Subnet Mask 255 255 255 0 Gateway IP 0 0 0 0 If these settings are compatible with your network you may plug the ARA 1 into your Ethernet switch and proceed with the configuration If you wish to...

Страница 28: ...configuration has been changed If your settings and connection are correct you should see the page shown in Figure 3 1 Figure 3 1 Status Information Page This is the status and information page for th...

Страница 29: ...values for you When you have made any necessary changes click Save at the bottom of the page These settings are not actually applied until the unit is restarted so you can continue to make other chan...

Страница 30: ...the ARA 1 rear panel will be sent across the IP link This is useful if your radio has a hardware squelch line COR and you are linking to other ARA 1 units Sending COR Status will tell the other units...

Страница 31: ...server Register Enable disable registration with SIP proxy server Registration Expiration Time interval between successful registrations with the SIP proxy SIP Port The local port number for SIP pack...

Страница 32: ...sconnect Immediately hang up the call or reINVITE then Disconnect Send a reINVITE to try to reestablish the call and then hang up if that fails Loss of Media Timeout Number of seconds media is lost be...

Страница 33: ...F digit is part of the current DTMF sequence or the start of a new one If the time between the end of one digit and the start of the next is less than the DTMF Digit Timeout that character will be con...

Страница 34: ...for best performance in a particular radio application Each of the settings is explained in this section the default settings are shown in Figure 3 5 Please see also Section 1 8 COR PTT Signaling in t...

Страница 35: ...arrier present and this noise will inappropriately trip the VOX function NOTE The Applications Notes that are provided with radio interface cables purchased from JPS will identify whether a COR line i...

Страница 36: ...eout will trigger after the set amount of time has passed unkeying the associated radio regardless of network audio content Furthermore the ARA 1 will not allow network audio input to key the radio ag...

Страница 37: ...er ARA 1s will receive a positive indication of COR status that arrives coincidentally with the radio audio and the ARA 1 will not have to derive the COR status using a VOX or VMR function This is a q...

Страница 38: ...ype in all ARA 1s and enable the Send Radio COR AUX Status SIP setting in all ARA 1s If the network consists of mixed devices for example multiple ARA 1 units as well other SIP devices such as SIP Pho...

Страница 39: ...R Packet Hang Time The Network COR VOX VMR Packet Hang Time setting performs the same function as the Radio COR Hang Time but applies to the audio coming from the SIP network If the transmitter deacti...

Страница 40: ...two methods If the user s radio has a keypad a pre selected DTMF sequence may be transmitted This is the easiest and surest way and therefore the preferred method If DTMF is not possible then a specif...

Страница 41: ...to the pre configured DTMF Sequences and then calling the associated Number to Dial 3 4 1 2 Call Progress Prompts The ARA 1 provides voice prompts automated voice messages that allow the radio user to...

Страница 42: ...ey clicks The key clicks must match the criteria specified in the COR Cadence Min Duration COR Cadence Max Duration and COR Cadence Digit Timeout fields In the Number To Dial field enter the SIP Exten...

Страница 43: ...A detected squelch break pulse and the delay between individual pulses can be no longer than the set max duration For a two step cadence the ARA 1 considers that any delay longer than the COR Cadence...

Страница 44: ...BYE the other end hangs up set the Redial Outbound Calls On BYE setting to Enable To have the ARA 1 redial a call it initiated if an error occurs such as the remote end is unavailable or a timeout oc...

Страница 45: ...s included here for clarity Figure 3 7 Call Management Page The URI of the end user that the call is being initiated to is entered in the Number field If a connection is already active this page may b...

Страница 46: ...the ARA 1 web pages facilitates upgrades to the unit s firmware and provides a means to remotely reboot the ARA 1 Figure 3 8 Administration Page 3 6 1 Password Protection Enter a username and passwor...

Страница 47: ...er Next from the ARA 1 s Status Information page use the Browse button to locate the file and click Upgrade to load the firmware into the ARA 1 3 6 3 Remote Reboot of the ARA 1 Click the Reboot button...

Страница 48: ...ARA 1 Operations Manual 3 22 INTEROPERABILITY NOW This page intentionally left blank...

Страница 49: ...er is unsquelched or the audio from the receiver has tripped the ARA 1 VOX function This LED also indicates that the ARA 1 is sending radio receive audio across the IP link 4 2 4 Audio Input LED The y...

Страница 50: ...o initiate a call from the radio side rather than the network side Call Initiation via DTMF Call Initiation via COR Cadence Web browser DTMF call initiation involves the use of a radio s DTMF keypad t...

Страница 51: ...llow the radio user to keep track of the progress of the call connecting disconnecting etc The factory default setting is Enable If you do not want these prompts transmitted over the radio set to Disa...

Страница 52: ...he IP address subnet mask and gateway address as specified below Table 4 1 System Information Prompts DTMF Sequence COR Cadence Spoken Value 0 10 IP Address 1 11 Subnet Mask 2 12 Gateway Address As an...

Страница 53: ...mple of this condition because of the time it takes a trunked radio to acquire an open channel See Section 5 6 for a full explanation If the radio system is not trunked the missed syllables could be c...

Страница 54: ...set to VOX and the VOX function is not properly optimized In this case it is likely that the VOX threshold should be made more sensitive See Section 3 3 5 for configuration explanation and instruction...

Страница 55: ...are that he is cross connected to a trunked system If this radio operator simply begins talking the first syllables or words will be lost while the trunked radio is silent and waiting to acquire a fre...

Страница 56: ...the SIP PBX by radio 1 Radio 1 is conferenced with radio 2 B Radio 2 is an 800 MHz trunked radio with a channel acquisition delay of 350 milliseconds Therefore radio 2 will not start transmitting the...

Страница 57: ...clipped or lost entirely The vertical lines signify various channel acquisition delays Without corresponding TX Audio delays all speech up until the channel is acquired will be clipped off of the beg...

Страница 58: ...ced when the PTT inputs are activated by either a COR input or by VOX as some radios will send out a noise burst after they unkey To prevent this first use the ARA 1 front panel LEDs to determine if t...

Страница 59: ...to a dialup is available the ARA 1 may not operate properly since the connection speed is not guaranteed on a dialup connection Poor telephone lines or varying line conditions may cause a dialup modem...

Страница 60: ...about 4 billion IP addresses available On the surface that would appear to be enough but some companies use a lot of them the military uses a lot of them and all the millions of people using the Inte...

Страница 61: ...described in the configuration section of this manual Should I use a firewall with the ARA 1 Strictly speaking from the standpoint of the ARA 1 there is no reason to use a firewall The ARA 1 is a sta...

Страница 62: ...an application that requires use of modem tones consult JPS I ve connected my radio to the ARA 1 I have the levels turned all the way up and can still barely hear the audio What s wrong The ARA 1 use...

Страница 63: ...o Settings 3 15 DTMF Digit Timeout SIP Actions 3 7 DTMF sequence 3 7 E Equipment and Accessories Supplied 1 11 F False Keying 5 1 5 6 firewall 6 3 Firmware Upgrade 3 21 Frequently Asked Questions 6 1...

Страница 64: ...13 Remote Reboot of the ARA 1 3 21 Resetting the ARA 1 to Factory Defaults 3 21 Reshipment of Equipment 2 1 S SIP 6 SIP Actions 3 7 SIP PBX 1 3 SIP Phone 6 SIP Settings 3 3 Soft Phone 6 Specification...

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