How to Connect E1/T1 Interface to Clarinet USB PRI

Wiring Rules

e1t1_ph_con01.jpg (9933 octets) The connection between the User and the Network over an E1/T1 interface is defined for two twisted pair signals:
  • T: Transmit direction
  • R: Receive direction

Both directions refer to the User side.
e1t1_ph_con00.jpg (154129 octets)

The label on top of the Clarinet E1/T1 pod displays connection & logical functions:

  • Analysis uses both A and B ports with each of them monitoring one direction.

  • Simulation uses either port A or port B depending on what you are simulating as described on the label.

Monitoring in parallel mode - RJ45

The connection between the User and the Network needs to be momentarily broken while you insert the Clarinet monitor T piece accessory as shown above. Pins 1 and 2 from the link between the User and the Network is connected to pins 1 and 2 on one RJ45 lead for delivery to Clarinet port A. Pins 4 and 5 from this link are connected to pins 1 and 2 on the other RJ45 lead for delivery to Clarinet port B. You will need to use the blue crossover cable (1245-4512) in your connection between the User and the Network.

Monitoring in serial mode - RJ45

e1t1_ph_con03.jpg (33702 octets)

The User-Network link is split:

  • Original Network-User cable is connected from the Network to port B

  • The "D" crossed 1245-4512 cable is added from the User to port A

The profile must use '120 / 100 / 75 Ohms " inputs.

 

Network simulation - RJ45

e1t1_ph_con05.jpg (25721 octets)

The E1/T1 link is connected as an extremity:

  • "D" crossed 1245-4512 cable is connected from the User to port A

The profile must use '120 / 100 / 75 Ohms " inputs.

 

User simulation - RJ45

e1t1_ph_con04.jpg (25721 octets)

The E1/T1 link is connected as an extremity:

  • Regular Network-User cable is connected from the Network to port B

The profile must use '120 / 100 / 75 Ohms " inputs.

 

Parrallel monitoring - BNC

e1t1_ph_con06.jpg (37738 octets)

Both BNC cables in the User-Network link need to have a T piece inserted.

  • The "B" straight 12-12 cable connected through a BNC-RJ45 adapter extracts the Rx signal

  • The "B" straight 12-12 cable connected through a BNC-RJ45 adapter extracts the Tx signal

The profile must use 'High impedance " inputs.

 

User simulation - BNC

The E1/T1 link is connected as an extremity to port B:

  • Use a straight RJ45 lead between port B and a Balun

  • Connect the Network to Tx and Rx BNC connectors on the balun

Network simulation - BNC

The E1/T1 link is connected as an extremity to port A:

  • Use a straight RJ45 lead between port A and a blaun.

  • Connect the User to Tx and Rx BNC connectors on the balun

 

 


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