Справочник Пользователя для Cisco SMB-BNC adaptor cable 72 inch CAB-T3E3-PL-AD=

-2 Cisco IGX 8400 Series Installation and Configuration, Release 9.3.0

Trunk cables connect the customer DSX-1 crossconnect point or T1-E1 Channel Service Unit (CSU)
to the IGX node at the BC-T1 or BC-E1 back card. Refer to Table C-2 for details.

E1 trunk cables connect the customer DSX-1 crossconnect point or E1 Channel Service Unit (CSU)
to the node at the back card. Note that variations exist in the pin assignments for some interfaces:
Table C-6 and Table C-7 show the D-connector pinouts for the CVM, NTM, UFM, UVM, and FRM.

Cable Type:

Western Electric 22 AWG, ABAM individually shielded twisted pair. Two
pair per T1 line (1 transmit and 1 receive).

Cable Connector:

Male DB-15 subminiature. See Table C-3 for pinouts. The connector
pinouts are the same for both the BA-T1 and the MT3 Distribution Panel.

Maximum Cable Length:

533 ft (162 m.) maximum between the node and the first repeater or CSU.

1

Transmit, Tip

2

Transmit Pair Shield

3

Receive, Tip

4

Receive Pair Shield

9

Transmit, Ring

11

Receive, Ring

Cable Type:

75-ohm coaxial cable for balanced line or 100–120-ohm twisted pair for
unbalanced line. Balanced lines use two cables per E1 port.

Cable Connector:

Two female BNC for balanced connection; male DB-15 for unbalanced
connection. See Table C-5, Table C-6, and Table C-7 for pinouts.

Max. Cable Length:

E1 output complies with G.703, so attenuation must not exceed –6dB at
1024 kHz (applies to 75 ohm coax or 120 ohm twisted pair). Maximum
length is 100 meters between the IGX node and the first repeater or CSU.

Rx BNC

Receive E1 from trunk

Tx BNC

Transmit E1 to trunk