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TC Communications TC1912 Manual

Telephone to 10/100base-t ethernet extender
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Although every effort has been made to ensure that this manual is
current and accurate as of date of publication, no guarantee is given or
implied that this document is error free or accurate with regard to any
specification. TC Communications, Inc. reserves the right to change or
modify the contents of this manual at any time without prior notifica-
tion.
©
COPYRIGHT 1992-2023. ALL RIGHTS RESERVED.
TC Communications, Inc.
Tel: (949) 852-1972
Fax: (949) 852-1948
Notice!
17881 Cartwright Road - Irvine, CA 92614
Web Site: www.tccomm.com
Email: info@tccomm.com
MNL-19120-01-12

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Summary of Contents for TC Communications TC1912

  • Page 1 TC Communications, Inc. reserves the right to change or modify the contents of this manual at any time without prior notifica- tion.
  • Page 2 MNL-19120-01-12 - 2 -...
  • Page 3 (-20°C to +70°C), Model TC1912T, is available for harsh environments. The TC1912 provides Toll Quality sound within voice bandwidths from 300Hz to 3.4 Khz. Two types of voice applications are supported: one, connecting to a PBX for outside telephone service; two, setting up a “hot link”...
  • Page 4 MNL-19120-01-12 - 4 -...

  • Page 5: Alarm Led

    “SYNC” LED: It is on when the communication link is established between the TC1912 pair (master and slave.) It will flash and the alarm will turn on if the communication link is lost for more than 15 secs. The TC1912 pair will automatically re-establish the link after any power or network disruption.
  • Page 6 It will turn on when the phone is ringing. “HT-L” LED (hot link): It is on when both TC1912 are set to FXS. It is off when one side is FXS and the other side is FXO. It will flash when both units are set to FXO and the alarm will turn on.
  • Page 7 Sets up the unit as FXO (down position) or FXS (up position). These DIP switches will be preset by Factory. Do not change. This DIP switch is ignored. NOTE: If the TC1912 is configured for 600 Ohm analog: 2. MSTR/SLVE: Set the unit as Master (down position) or Slave (up position).
  • Page 8 For FXO, use a regular phone wire to connect to the local phone network such as phone line from Telco or PBX phone line. For FXS, use a regular phone wire to connect to a conventional (2-wire) telephone. Use this RJ-11 port to connect the two or four wire 600 Ohm analog signal. Connect this port using a twisted pair Ethernet cable to the local network.
  • Page 9 Campus, Traffic Control, or Utility Substation Networks. By connecting two TC1912's as shown below and using regular telephone sets, the users at both sides of the Ethernet link can have a hotlink phone line setup. When one user lifts up the handset, the remote side phone will start to ring.
  • Page 10 This application is to extend a dial-up phone line via existing Ethernet as shown in the following diagram. By connecting a TC1912 to a regular dial-up phone line, the users at the remote end can dial to the outside phone network just like regular telephone line extended.
  • Page 11 The RJ-45 & RJ-11 female connectors for the electrical signals are located on the rear panel. TC1912's need to work in pairs in an Ethernet network. One unit needs to be set to Master “MSTR” and the other one needs to be set to Slave “SLVE” using the front panel DIP switch. If the TC1912 pair is separated by a firewall, the Master unit should be the one sitting outside of the firewall.
  • Page 12 "DISALM" to down(on) position.) Start your Web browser. In the Address box, enter the IP address of the TC1912. For example, if the unit is set to default Slave, enter: http://192.168.254.124 If the unit is set to default Master, enter: http://192.168.254.123...
  • Page 13 Once connected, you should see the "Current Status" screen, as on Figure 6. (Please refer to "Testing & Trouble shooting" section, if not connected). Click the links at the left of the page to navigate to the desired section. You can change the user name and password by clicking on the link "Access" at the home page. Click the "Undo"...

  • Page 14: Subnet Mask

    Click on the "Network" Link at the home page and you should see the following screen. (Note: Please contact your local network administrator for your network settings.) Local Unit Description (optional): Enter the description for the local unit. IP Address: Unit's IP Address.

  • Page 15: Gateway Ip Address

    UDP Port: This is the UDP port number which the TC1912 units will attempt connections. Default value is 1912. (Range: 1-65535). Note: (Some of the well known port numbers such as 1, 23, 80 , 546, and 547 cannot be used as communication ports because they are already used internally by the unit itself.)
  • Page 16 The RJ-11 connector is located at the rear panel of the TC1912. For four wire analog signals: Pin 5 is transmit TIP & pin 2 is transmit RING. Pin 4 is receive TIP & pin 3 is receive RING. For two wire analog signals: Pin 4 is the TIP &...

  • Page 17: Ethernet Switch

    3. Two regular analog telephone sets. 4. Two telephone wires and two Ethernet cables. Connect both TC1912 units to the Ethernet Switch and connect a phone to both units. Make sure the Ethernet switch is not connected to anything except the power and the TC1912s.
  • Page 18 To test the Phone line Extension function, Simply do the following: (Power off is not needed) Unit A: (Assuming FXO unit is odered). Set the "FXO" DIP Switch to on (down) position. Connect a phone line between the TC1912 and the wall jack. Unit B: No Change...
  • Page 19 MNL-19120-01-12 - 19 -...
  • Page 20 Buyer should notify TC Communications, Inc. promptly in writing of any claim based upon warranty, and TC Communications, Inc., at its option, may first inspect such goods at the premises of the Buyer, or may give written authorization to Buyer to return the goods to TC Communications, Inc., transportation charges prepaid, for examination by TC Communications, Inc.
  • Page 21 TC Communications, Inc. TC Communications, Inc. shall not be responsible for loss or damage in transit and any claims for such loss or damage shall be filed by the purchaser with the carrier.

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