TN150 Repeater / Tone Remote Controlled Base Station
MT-4 Radio Systems
TECHNICAL NOTES
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LMRSALES@CODANCOMMS.COM
CODANCOMMS.COMTECHNICAL NOTE:
TN150, REV 1-0-0, © Aug 2016
CANADA/US +1 250 382 8268 | TOLL FREE +1 800 664 4066
A Codan radio system can be confi gured for a wide variety of radio system solutions. The large number of varied
solutions and the customizability of the radio system makes for a wide variety of audio, serial data and COR-PTT
routing confi gurations.
A repeater / analog controlled base station uses the LVDS serial data cable to allow full mixed mode (analog and
P25 digital) repeating, while the analog audio is sent to and from the tone remote adapter via the AC-3E or CI-BC-
4E control cards. This system can be confi gured as a “repeater only” by removing the control card or tone remote
adapter. It can also be confi gured as a “tone remote controlled base only” by removing the LVDS serial data cable.
If used as an analog repeater only, jumpers can be set in the control card to repeat audio and the LVDS serial data
cable can be disconnected.
Connections to the tone remote adapter are typically made from the receiver and transmitter, through the control
card to the adapter. Physical connections can be made on the A-PNL-AUX96-3 auxilairy connector, or the DB-25
connector (J10), both located on the back of the subrack.
Optionally, the receiver and transmitter can be connected directly to the tone remote adapter and bypass the control
card. The control card should be removed from the subrack or unwanted loading could occur. The A-PNL-AUX96-3
auxiliary connector supports connection directly to the receiver and transmitter, and the DB-25 (J10) can be jumper
selected to change the pins from Auxiliary Audio to Receiver / Transmitter Audio.
The tone remote adapter may also be replaced by an IP adapter, such as a Telex IP-223 or IP-224
DB25 Connector (J10)
Connector J10 is a female DB25 connector which can be used for basic base connections. When connected to a
Telex DSP-223 or IP-223 / IP-224, a standard straight-through male-to-male DB25 cable can be used with some
motherboard jumper changes. The IP-224 requires a female DB25 to male DB37 adapter. The IP-223 / IP-224
also requires that 2 pins on the DB25 (PTT COM - pin2 and MON COM - pin 16) are wired to ground for proper
operation. The DB25 can also be jumpered for Balanced Audio direct to / from the receiver / transmitter or Auxiliary
Audio (recommended) through the controller.
WARNING: JU108 must be confi gured correctly for DSP-223 or IP-223 / IP-224 or damage can occur.
JU104 A = RX A Bal O/P2 or B = AUX 1 AUD O/P2 JU107 A = RX A Bal O/P1 or B = AUX AUD O/P1
JU105 A = TX A Bal I/P2 or B = AUX 1 AUD I/P2 JU108 A = DSP-223 / +13.8 V or B = IP-223 & IP-224/ RX A COR
JU106 A = TX A Bal I/P1 or B = AUX 1 AUD I/P1 JU109 TX A SEC / CLR I/P (installed to enable TX A SEC / CLR I/P)
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