Samsung 70 manual

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Table of contents for the manual

  • Page 1

    Samsung DCS Application Note No 15 - Issue 01 Page 1 of 8 For Further Information Call LSP Communications No. 15 August 1998 Topic E and M Tielines Introduction • E&M Tielines are used to connect systems using E&M signalling • E&M tielines allow connection between systems supporting E&M tielines and may be used for intercom call[...]

  • Page 2

    Samsung DCS Application Note No 15 - Issue 01 Page 2 of 8 For Further Information Call LSP Communications Connecting two systems using E&M Tielines can be done using three methods: • Directly - if both systems are co-located TX pair of system A is connected to the RX pair of system B RX pair of system A is connected to the TX pair of system B[...]

  • Page 3

    Samsung DCS Application Note No 15 - Issue 01 Page 3 of 8 For Further Information Call LSP Communications The DCS 70 connects the E&M Tieline cards using tails and RJ45 connections. Ports 1 and 2 on the cards are connected using the tails and ports 3 and 4 are connected using RJ45 connectors located on the cards. Colour KSU(P2) EXP(P5) 4E&M[...]

  • Page 4

    Samsung DCS Application Note No 15 - Issue 01 Page 4 of 8 For Further Information Call LSP Communications Connection the E&M Tieline cards on the DCS uses a 25 pair tail. All Four E&M Tieline ports are connected via the 25 pair tail. Note the E lead is connected to the mate, for example E&M Tieline port 1 has the E lead on the White wir[...]

  • Page 5

    Samsung DCS Application Note No 15 - Issue 01 Page 5 of 8 For Further Information Call LSP Communications Programming The following MMCs are used with E&M Tieline cards: MMC Description 304 Keyset - Trunk Use 310 LCR Class of Service 400 Trunk ON/OFF 403 Trunk Toll Class 404 Trunk Name 408 Trunk Music on Hold 416 E&M DID table use 422 Trunk[...]

  • Page 6

    Samsung DCS Application Note No 15 - Issue 01 Page 6 of 8 For Further Information Call LSP Communications Example This example shows how two systems can be connected using an E&M Tieline. The programming for this example is very basic. For more flexible and elaborate networking, LCR and VPN programming may be used. System A Dial Numbering plan [...]

  • Page 7

    Samsung DCS Application Note No 15 - Issue 01 Page 7 of 8 For Further Information Call LSP Communications Operation When a keyset connected to system A dials for example 302, the digit 3 selects the E&M Tieline, digits “0” and “2” are then sent to system B via the E&M Tieline. Because the E&M Tieline port on system B has been pr[...]

  • Page 8

    Samsung DCS Application Note No 15 - Issue 01 Page 8 of 8 For Further Information Call LSP Communications E&M Tieline Fault Finding • Using the circuit diagram on Page 1, a resistance measurement across the Transmit pair or the Receive pair will indicate a resistance of approximately 58 W . • Voltage measurements between earth and the M lea[...]