DXI MicroComm ACB-100 Скачать руководство пользователя страница 6 | Manualshive

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DXI MicroComm ACB-100 Скачать руководство пользователя страница 6

ACB-100 Audio Control Board

Page 6

Document IM-ACB-100-2.5

4.3 Copper CEPT Network Interface

For the copper conductor interface version of the CEPT trunk a CBL-110-A cable connects to the female DB-50
connector on the rear of the ACB card. The CBL-110 cable has three individual multi-conductor cables; (i) four (4)
shielded twisted pair, (ii) six (6) unshielded twisted pairs, and (iii) four (4) unshielded twisted pairs with a cable
shield. Only one of the cables (four unshielded twisted pair with cable shield) is used with the ACB card. The pin
outs for a mating male connector on a CBL-110 cable is shown in the following wiring table. Only the Tx and Rx
CEPT connections are used for this application. Signals indicated are from the board’s perspective.

The maximum distance between ACB cards for a 22 gauge (unshielded) twisted pair is 8,200 ft (2.5 km).

4.4 Fiber Optic CEPT Network Interface

The fiber optic CEPT interface version of the audio control board is provided with four ST type fiber optic
connectors. These are marked for each of CEPT 1 and CEPT 2 as Tx (Transmit) and Rx (Receive) from the board’s
perspective.

The maximum signal strength power loss in a fiber optics CEPT link must not exceed 12 db. The length of cable,
number of connectors, and number of patch panels determines the loss of signal strength in fiber optic cables.
With only one pair of connectors between ACB cards for a 62.5/125 multimode fiber optic cable the maximum
distance between ACBs is 8,500 ft (2.6 km).

Typically, every connector reduces the signal by 0.3 db, and every 3,300 ft (1 km) of cable reduces the signal by
3.2 db, assuming a perfect connection. You should allow for some extra margin for field-grade connections.

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Содержание MicroComm ACB-100

Страница 1: ... system s digital signal processors Audio trunking between card cages which may be linked to form larger exchanges is also made through the ACB Each audio control board may include up to two Digital Signal Processors DSP expansion modules Each expansion module provides two more DSPs These DSPs are used to support additional I O cards and special functions such as Audio Level Alarms and conference ...

Страница 2: ...s Each daughter card contains two DSPs The factory installed DSP is labeled DSP 1 The daughter card inserted in header CN20 CN1 contains DSPs labeled DSP 2 and DSP 3 while the daughter card inserted in header CN21 CN2 contains DSPs labeled DSP 4 and DSP 5 The following diagrams show the location and 1 pin of the headers CN20 CN1 and CN21 CN2 If a daughter card is not installed in CN20 CN1 and or C...

Страница 3: ...er Card DSP Daughter Card ACB 100 PC 046487 02 PC 046487 02 Header Location for DSP Daughter Cards on PC06487 02 The card cage has 17 card slots The ACB card is always installed in position 1 while the remaining 16 slots can be used for any other type of DXI card Determining card positions should be partially based on the intensity of the workload placed on the DSP s The card cage slots are divide...

Страница 4: ...d with switch inputs SAB or AIO cards for example in card cage slot 17 Cards such as a PAB TSB or DIO cards can be inserted in card slot 17 since these cards do not depend on the DSP for support Each DSP is capable of supporting 4 master stations The slot position of the SAB cards in the card cage and the assignment of SAB channels to master stations must be made so as to satisfy this constraint 4...

Страница 5: ...ACB is connected to Rx2 of the next ACB while Tx2 of the second ACB is connected to Rx1 of the first ACB In the CEPT network show the ACB s are connected so that the Primary loop is in the clockwise direction while the Secondary loop is in a counterclockwise direction With this configuration if one link is broken then data can still be transmitted from one ACB to any other ACB by switching to the ...

Страница 6: ...The maximum distance between ACB cards for a 22 gauge unshielded twisted pair is 8 200 ft 2 5 km 4 4 Fiber Optic CEPT Network Interface The fiber optic CEPT interface version of the audio control board is provided with four ST type fiber optic connectors These are marked for each of CEPT 1 and CEPT 2 as Tx Transmit and Rx Receive from the board s perspective The maximum signal strength power loss ...

Страница 7: ... Green White 12 5 Audio 3 Black 13 22 Audio 3 Green 14 38 Audio 3 Shield BG Shield 15 6 Input 3 White Brown 16 23 Common 3 Brown White 17 39 Output 3 White Grey 18 7 Audio 4 Black 19 24 Audio 4 Blue 20 40 Audio 4 Shield BBl Shield 21 8 Input 4 Grey White 22 25 Common 4 Red Blue 23 41 Output 4 Blue Red 24 9 N C 25 26 N C 26 42 N C 27 10 N C 28 27 N C 29 43 N C 30 11 N C 31 28 N C 32 44 N C 33 12 N ...

Страница 8: ... the following page may be copied and used as a worksheet for planning system wiring It shows the audio control board s pin numbers pin signal name associated CBL 110 cable wire colors and terminal block terminal numbers The blank column is to be used to identify the field wiring interface connection ...

Страница 9: ...mmon 2 White Green 11 37 Output 2 Green White 12 5 Audio 3 Black 13 22 Audio 3 Green 14 38 Audio 3 Shield BG Shield 15 6 Input 3 White Brown 16 23 Common 3 Brown White 17 39 Output 3 White Grey 18 7 Audio 4 Black 19 24 Audio 4 Blue 20 40 Audio 4 Shield BBl Shield 21 8 Input 4 Grey White 22 25 Common 4 Red Blue 23 41 Output 4 Blue Red 24 9 N C 25 26 N C 26 42 N C 27 10 N C 28 27 N C 29 43 N C 30 11...

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