DRC1 Configuration Handbook to software Version 3.6 A.W. Communication Systems Ltd. Crook Barn The Crook Roweltown, Carlisle Cumbria CA6 6LH England Tel 44-(0)-1697-748777 Fax 44-(0)-1697 748778 www.toneremote.co.
Part 1, Installation and Configuration. Forward Thank you for purchasing the DRC-1 desktop radio control unit. If used within the guidelines specified herein, the unit will provide trouble free operation without the need for service or repair. Repair Philosophy. The DRC-1 has been designed using the very latest microprocessors and employs specially written and tuned DSP software. Should the unit appear not to function properly, double check the programming parameters you have set.
Connectors on the rear panel. Auxiliary Port Power Record / Playback Port Comms PTT Headset Microphone Telephone Line (PW) Telephone handset On side of unit Power Supply Port. The unit requires 12vDC nominal supply, centre pin positive. It is recommended that only the supplied power supply unit is employed. Auxiliary Port. The auxiliary port is used for connecting third party equipment such as modems, employed in data capable radio systems. Record And Playback Port.
Headset Port. The headset port facilitates the connection of an operator’s headset used to achieve quiet operation at the dispatcher workstation. Microphone Port. The microphone port facilitates the connection of a desk stand microphone as may be employed in a taxi dispatcher work station. Telephone Port. The DRC-1 is capable of operating in common headset mode. This mode enables a single headset to be switched between radio traffic and telephone traffic.
Desk Microphone Connector RJ11 Pin Signal Number 1 Telephone select I/p 2 Ground 3 Microphone I/p 4 PTT 5 Ground 6 Auxiliary +12vDC Handset Connector RJ8 Pin Signal Number 1 Microphone 2 Ear 3 Ear + 4 Microphone + Comms Connector DB9F Pin Signal Number 1 N/C 2 TX data 3 RX data 4 DTR 5 Ground 6 DSR 7 N/C 8 N/C 9 TOSC I/p Record & Playback Connector DB9F Pin Signal Number 1 Auxiliary +12vDC 2 Tape O/p 0 3 Tape I/p 0 4 Tape Select I/p 5 Tape O/p 6 Ground 7 Tape O/p 1 8 Tape I/p 1 9 Ground Notes Active Low
Auxiliary Connector DB9F Pin Signal Number 1 Auxiliary +12vDC 2 Audio Out 0 3 Audio In 0 4 Auxiliary PTT 5 Ops Busy Signal/or Alarm 6 Ground 7 Audio Out 1 8 Audio In 1 9 Ground Notes Limited to 500 mA ** see note 600Ω balanced 600Ω balanced Active Low Active Low 600Ω balanced 600Ω balanced ** The auxiliary supply has a total current capability of 500mA. The current draw from all connectors when added together must not exceed 500mA. The output is protected by a thermal auto-reset fuse.
After unpacking the unit, connect the handset to the main body using the cable supplied. Connect the power supply unit to the main body of the telephone and plug into an appropriate supply. The unit will initialise and display a welcome message before going into its operational state. When in its operational state, the menu system is accessible and configuration may begin. The menu is divided into two sections being 1, user menu, 2, installation / configuration menu.
The Menu key has two functions. On first press it engages the menu system. Once in the menu system, the menu key acts as carriage return to agree and select the values set in the options field. Exiting the menu area causes the selected values to be stored. The scroll up and down keys move through the menu options, and pressing menu selects the desired option. The clear key steps back one place in the selection process.
Set RX ack to close down call Set RX ack to interrogate Set RX ack to locate Set TX call code Set TX code for interrogate Set TX code for locate call Set TX code for close down Set TX code for ack to RX call Set TX ack to night service Ack timeout Set how long system waits for ack L.E.T.
From the installation menu select trim line input Adjust the line input for a reading of –20dBm on the meter Store this value (press menu) Increase the line input level to –10dBm and check output is also –10dBm Increase the input level to 0dBm and check output remains at –10dBm +2dBm-0 Transfer the meter to the line output port and set input level to –20dBm Select trim output level and set level on meter for –20dBm, store this value.
The Installation Menu in detail Emulation Mode The emulation mode provides the system programmer with the base station keying options. The DRC-1 has embedded software for Simoco and Motorola keying plus Dc keying. The options in order:DRC-1 Hardwire PTT. The DRC-1 will use its open collector transistor to pull down the base stations PTT line. DRC-1 2970Hz. The DRC-1 will output 2970Hz to line when any PTT key is operated. DRC Switch interface. Used when controlling a DS32 radio switch. M80 Remote.
Selcall Tone Length Press [menu] to select this item, use the scroll up/down keys to move through the options. Press [menu] to select desired option and then press [clear] twice to exit the menu system and implement the changes. Please note that pressing clear once will allow you to remain in the menu facility to continue configuration. All items selected and altered will be implemented upon exit from the menu system. Selcall Ident Size.
Call stack Options. The DRC-1 offers a call stack to store incoming idents. This menu facilitates how the calls are handled within the DRC-1. Select [menu] to access the menu item, then, use the scroll up/down to move through the options. When the desired option is opposite the chevron, pressing [menu] will select the option, then, press [clear] twice to store and exit the menu facility. The options are:Call Stack Disabled.
RX Vox Defeat Time The line input to the DRC1 has a Voice Operated Switch (VOX), which removes from the audio path constant line noise appearing on the line below the VOX level. The VOX switch is defeated on incoming calls which produce audio above the VOX level, but if the vox where to snap shut, pauses in speech may result in a fragmented message being heard. The defeat time parameter sets how long the VOX hangs open after the incoming level drops below the VOX threshold.
Talk Through Mode This parameter sets how talk through is achieved. The options are local or remote. In local mode the audio for the transmitter is derived from that received by the DRC1 on its input line. When the TT key is selected, the DRC1 will operate the PTT signal when the incoming VOX is triggered, and also outputs to line the received audio.
Installer Password This item sets the PIN code lock to prevent unauthorised access to the installation menu. 4 digits may be set. Press [menu] to access this item. Password is set to NONE by default, enter 4 digits then press [menu] to store the selection, then [clear] twice to exit the menu system and implement the changes. Selective Calling System. The DRC1 has been equipped with a very flexible selective calling system.
Enter in the desired order, numbers for the fixed digits, # symbols for the ident variable digits and * symbols for the status variable digits. The order they are entered represents where in the incoming string the DRC1 will extract ident and status information, and the sequence must match that set in the mobile radio sets. Emergency Call Sets the code DRC1 expects from a mobile resource signalling for urgent attention.
TX Close. The code set here causes the mobile radio set to re- mute after a conversation with control. This code is transmitted in response to the “close” button on the DRC1 keypad being operated. TX Ack To RX. When a mobile calls in and that call is queued for operator attention at some later time, the mobile benefits by having a confirmation signal that the call has actually been received and queued.
channel within the DRC-1. The playback audio may then be listened to in the DRC-1 loudspeaker and headset. Display Backlight The display backlight may be turned on and off by using [Shift-3] Selcall Alerts An audible alert tone is heard in the DRC-1 loudspeaker and headset each time a selcall code is decoded. This alert tone may be turned on and off by use of the [Alert] key. Changing Radio Channel The DRC-1 if configured, will provide multi-channel operation.
Motorola Tone Signalling. Within the Motorola tone signalling format, the controller sends three tones to the remote site every time PTT is operated or a function switch is operated. The tones are basically a high level guard tone (used to alert or wake up the base station) a function tone, and a lower level key tone which is the same frequency as the high level guard tone. The low level tone continues to be sent for the period that the PTT key is operated.
Hints and Tips Using filter Digits In Selcall. Where the DRC-1 is deployed on commercial (shared) radio frequencies, it is advisable to use fixed digits as part of the selcall string. The fixed digits act as a filter for the decoding system. For example, if the selcall pattern within the DRC-1 is set to ###**, then the DRC-1 will decode any five digit string which is received as 3 digits of ID plus two status digits.
Compliance. What Is RoHS ? The RoHS Directive stands for "the restriction of the use of certain hazardous substances in electrical and electronic equipment". This Directive bans the placing on the EU market of new electrical and electronic equipment containing more than agreed levels of lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyl (PBB) and polybrominated diphenyl ether (PBDE) flame retardants.
Menu Item Emulation Mode Set Mic Gains Selcall Tone Set Selcall Tone Length Selcall Ident size Selcall Staus Size Selcall Codes Value Set and or alpha tag RX call RX emergency call RX ack to TX call RX ack to Close RX ack to Interrogate RX ack to locate TX call TX interrogate TX locate TX close TX ack to RX call TX night ack to RX Selcall ack timeout Link Establishment Call Stack Option Leading repeat tone Circulating calls Alert tone default Alert tone type Call Log printer RX vox defeat Motorola functio
