User manual TELEX AUDIOCOM DSI 2008 REV C

[. . . ] User Instructions DSI 2008 Digital System Interface ADAM, ADAM CS, and Zeus Intercoms 9350-7870-000 Rev C 11/2008 PROPRIETARY NOTICE The product information and design disclosed herein were originated by and are the property of Telex Communications, Inc. Telex reserves all patent, proprietary design, manufacturing, reproduction, use and sales rights thereto, and to any article disclosed therein, except to the extent rights are expressly granted to others. SHIPPING TO THE MANUFACTURER All shipments of product should be made via UPS Ground, prepaid (you may request from Factory Service a different shipment method). Any shipment upgrades will be paid by the customer. The equipment should be shipped in the original packing carton. [. . . ] If your TW system cable is only carrying one channel, or if you only need to connect one of two channels, connect directly to J1A (System A) or J1B (System B). If your TW system cable is carrying two channels, and you want to connect to both, use a TW-5W or similar device as shown in Figure 3 on page 8. 7 NOTE: 2. The DSI 2008 features internal DC isolation. You can therefore connect to the DSI 2008 to powered TW cables, and it will not draw any power from the TW system. On the DSI 2008 front panel: For System A and System B, set the 2W CHAN SEL switch to the appropriate position. To interface to TW channel 1 select position 1; for TW channel 2, select position 2. If the System A or System B will not be used, set the 2W CHAN SEL switch to the OFF position and attach a dummy load to the TW XLR connector. NOTE: FIGURE 3. Using a TW-5W to connect to two TW channels to the DSI 2008 Audiocom Audio Connection 1. You can directly connect standard Audio 1-channel cables. Connect one Audiocom channel to the J1A connector on the back of the DSI 2008 (System A). Connect a second Audiocom channel to the J1B connector (System B). If your Audiocom system uses 2-channel cables, use a JB-2 Junction Box to split the channels (Figure 4) The DSI 2008 features internal DC isolation. You can therefore connect the DSI 2008 to powered Audiocom cables, and it will not draw any power from the Audiocom system. On the DSI 2008 front panel, set the 2W CHAN SEL switches for System A or System B to the BAL position. If System A or System B hybrid will not be used, set the 2W CHAN SEL switch to the OFF position and attach a dummy load to the TW XLR connector. NOTE: 2. NOTE: 8 FIGURE 4. Using a JB-2 Junction Box to split a 2-channel Audiocom cable into two 1-channel cables. Clear-Com Audio Connection 1. Use standard Clear-Com 3-pin cables. Connect one Clear-Com party line to the J1A connector on the back of the DSI 2008 (System A). Connect a separate Clear-Com party line to the J1B connector (System B). The DSI 2008 features internal DC isolation. You can therefore connect the DSI 2008 to powered Clear-Com cables, and it will not draw any power from the Clear-Com system. On the DSI 2008 front panel, set the System A and System B 2W CHAN SEL switches to position 2. If the System A or System B hybrid will not be used, set the 2W CHAN SEL switch to the OFF position and attach a dummy load to the TW XLR connector. NOTE: 2. NOTE: Other 2-wire Audio Connection 1. Use the J1A connector on the back of the DSI 2008 to connect one 2-wire line to the System A hybrid. Use the J1B connector to connect a second 2-wire line to the System B hybrid. The pin configuration for the J1A and J1B connectors depend on whether you are connecting a balanced or unbalanced 2-wire line, as follows: TW systems must provide termination on the audio channel. NOTE: Balanced Configuration Pin 1 Pin 2 Pin 3 No Connection Balanced Audio + Input/Output Balanced Audio - Input/Output ** Termination 300 There are two possible configurations for unbalanced connection: Unbalanced Configuration 1 Pin 1 Pin 2 Pin 3 Audio Common Audio Input/Output No Connection ** Termination 200 9 Unbalanced Configuration 2 Pin 1 Pin 2 Pin 3 Audio Common No Connection Audio Input/Output ** Termination 200 2. On the DSI 2008 front panel, set the CHAN SEL switches as follows: · · · NOTE: Balanced Configuration: set the CHAN SEL switches to the BAL position. Unbalanced Configuration 1: set the CHAN SEL switches to position 1. Unbalanced Configuration 2: set the CHAN SEL switches to position 2. [. . . ] We also recommend that you assign auto-listen (AL) to the listen key above that talk key. Optional call enable control. If you connected a GPI Output for use as a call enable control, you can assign that GPI output to any intercom key in the 4-wire intercom system. If System A is connected to an Audiocom or TW intercom system, pressing the key will disable the call signaling. (However, the effect is opposite if a Clear-Com system is connected: pressing the key will disable the signaling. ) Send your changes to the intercom system. [. . . ]