Listen Technologies CU 6011, CU 6005, CU 6010 user manual General guidelines, Built into 19 Racks

Danish Interpretation Systems User Manual

System Setup

General guidelines

Connect the CU 6005/6010/6011 to the various DCS 6000 units using Cat5 or Cat5e FTP or STP screened cables.

The operation of the DCS 6000 units is found in the User Manual for the specific units.

Please observe the following guidelines:

∙Maximum cable length in one chain is 200 m (before repeating). This includes interconnection cables between the units. The max. usable cable length depends on the units connected and length of feeding cables etc.

∙Maximum cable length in one chain when using repeaters is 650 m.

∙Although the DCS-LAN Network Output connectors (CU 6005: A1 plus A2, CU 6010/6011: A1, A2, B1 or B2) have a 125W supply, this 125W power is not all available with long cables, as there will be a power drop in the feeding cable from the CU 6005/6010/6011 to the units connected. If the feeding cables are short and the cables between the units are short, more units can be connected than if the feeding cable is long and/or the cables are long

between the units. Please consult the next section ‘Maximum number of units to be connected’.

∙The maximum number of languages configured on chain A (A1 or A2) or B (B1 or B2) is 16. If more languages are required, Interpreter sets for those languages have to be divided between both chains (A and B) – this is only applicable for the CU 6010/6011. Normally the languages are supposed to be divided equally on chains A (A1 or A2) and B (B1 or B2).

∙If the last unit in one chain is a CS 6032 Channel Selector, this unit has to be terminated with an external termination, as the CS 6032 does not have an internal automatic termination.

It is desirable that the square of the feeding cables especially but also the interconnection cables are as big as possible to minimize the voltage drop in the cables. Cat 5/Cat5E cables are delivered in various gauges:

The following table is showing the Diameter/square for various AWG types:

Type	Diameter	Square
AWG22	0.64 mm	0.32 mm2
AWG23/1	0.57 mm	0.25 mm2
AWG24	0.53 mm	0.22 mm2
AWG26	0.42 mm	0.14 mm2

Built into 19” Racks

The unit has a built-in fan taking air in at the right side of the unit and blowing the hot air out at the right side. That allows units in 19” racks to be

stacked close with other units without extra room for cooling air between them. Please check that the other units will allow this.

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