E1 Cabling; Table B-3 T1 Trunk/Circuit Line Cabling Specification; Table B-4 T1 Connector Pin Assignments; Table B-5 E1 Trunk/Circuit Line Cabling Specification - Cisco MGX 8850 Installation And Configuration Manual

Control and Clock Cabling
Table B-3
Cable Parameter
Cable Type:
Cable Connector:
Max. Cable Length:
Table B-4
Pin No. Description
1
2
3
4
9
11
Note

E1 Cabling

BNC Connector
E1 trunk cables connect the customer DSX-1 cross-connect point or E1 Channel Service Unit (CSU)
to the node at the FRSM E1 back card (BNC-8E1). Refer to Table B-5 and Table B-6.
Table B-5
Cable Parameter
Cable Type: BNC-8E1
Cable Connector:
Max. Cable Length:
Table B-6
Connector
Rx BNC
Tx BNC
B-6 Cisco MGX 8850 Installation and Configuration, Release 1.1.10, Part Number 78-6186-03
T1 Trunk/Circuit Line Cabling Specification
Description
Western Electric 22 AWG, ABAM individually shielded twisted pair
(100 ohm balanced). Two pair per T1 line (1 transmit and 1 receive).
Male DB-15 subminiature.
533 ft. (162 m) maximum between the MGX 8850 node and the first repeater
or CSU. Selection of cable length equalizers.
T1 Connector Pin Assignments
Transmit, Tip
Transmit Pair Shield
Receive, Tip
Receive Pair Shield
Transmit, Ring
Receive, Ring
Transmit direction is towards the T1 trunk.
E1 Trunk/Circuit Line Cabling Specification
Description
75-ohm coax cable for unbalanced connection. Two cables/pairs (1 transmit,
1 receive) per E1 line.
Two female BNC for unbalanced connection; male DB15 for balanced
connection. Refer to Tables A-2 and A-3 for pinouts.
Approximately 100 meters maximum between the MGX 8850 node and the first
repeater or CSU. Equalizer for cable length.
E1 Connector Pin Assignments (unbalanced)
Description
Receive E1 from trunk
Transmit E1 to trunk