Paradyne 336x E1 Table C-2 Port Configuration Options, Net Dclb Disab Next Enab Disab Prev

Configuration Options

Port Configuration Options

Table C-2

(1 of 4)

Port Configuration Options

Port Type: E530

Next E530 V.35 RS449 X.21 Prev

Data Port Type. Allows selection of the data port interface type.

E530 ± Configures the port as an EIA 530A compatible interface. EIA 530A DTEs can be directly connected to a port connector on the back of the E1 NTU.

V.35 ± Configures the port as a V.35 compatible interface. V.35 DTEs can be connected to a port connector using an EIA 530A-to-V.35 adapter cable.

RS449 ± Configures the port as an RS449 compatible interface. RS449 DTEs can be connected to a port connector using an EIA 530A-to-RS449 adapter cable.

X.21 ± Configures the port as an X.21 compatible interface. X.21 DTEs can be connected to a port connector using an EIA 530A-to-X.21 adapter cable.

NOTE: If this configuration option is set to X.21, you must set the All Ones configuration option to RTS or Disab.

Net DCLB: Disab

Next Enab Disab Prev

Network Initiated DCLB. Allows the initiation and termination of a Data Channel Loopback (V.54 loop 2) by the receipt of a V.54 DCLB-actuate sequence or DCLB-release sequence from the network or far-end device.

Enab ± Allows the E1 NTU to begin a DCLB for this port when it receives a DCLB-actuate sequence (if the current E1 NTU state allows a DCLB to be performed). Receiving a DCLB-release sequence terminates the DCLB.

Disab ± Ignores the DCLB-actuate and DCLB-release sequences for this port.

Port LB: Disab

Next Disab DTLB DCLB Both Prev

Port (DTE) Initiated Loopbacks. Allows the initiation and termination of a local Data Terminal Loopback (DTLB) or remote Data Channel Loopback (DCLB) by the DTE connected to this port. (DTLB is equivalent to a V.54 loop 3, and DCLB is equivalent to a V.54 loop 2.) Control of these loopbacks is through the DTE interchange circuits as specified by the V.54 standard.

Disab ± Disables control of local DTLBs and remote DCLBs by the DTE connected to this port.

DTLB ± Gives control of the local DTLBs for this port to the DTE attached to this port. This loopback is controlled by the Local Loopback interchange circuit LL (CCITT 141).

DCLB ± Gives control of the remote DCLBs for the far-end port connected to this port to the DTE attached to this port. This loopback is controlled by the Remote Loopback interchange circuit RL (CCITT 140). The far-end equipment must support in-band V.54 loopbacks.

Both ± Gives control of local DTLBs and remote DCLBs to the DTE connected to this port.

3360-A2-GB20-20 December 1996 C-3