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A. Connectors and Pin Assignments
4202 E1 Uplink Module Connectors
The 4202 E1 Uplink Module has two types of connectors, only one of which may
be used at a time:
T
T
120 Connector
The 120
The shield is connected to ground via the module. Pin assignments for the 120
connector are shown in
Table A-7. 4202 E1 Uplink Module 120 Connector
75 TX/RX Connectors
The 75
respect to ground. The shield of the TX cable is connected directly to ground at the
E1 module. The shield of the RX cable is capacitor-coupled to ground at the
module. Pin assignments for the 75 TX/RX connectors are shown in
Table A-8. 4202 E1 Uplink Module 75
A-6
120
Connector
75
Connector TX/RX Connectors
connector is a single, RJ48C, unkeyed, shielded, 8-pin modular jack.
Table
Signal
Receive Ring
Receive Tip
NC
Transmit Ring
Transmit Tip
NC
NC
NC
TX/RX connectors each use coaxial cables that are unbalanced with
Signal
Transmit
Transmit Signal and Chassis Ground —
Receive
Receive return path (not grounded)
October 2002
A-7.
Direction Pin
In
1
In
2
—
3
Out
4
Out
5
In
6
—
7
—
8
TX/RX Connectors
Direction Pin
Out
Coax Center Conductor
Barrel
In
Coax Center Conductor
Out
Barrel
Table
A-8.
4200-A2-GN20-10
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