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Rear panel connections, Figure 3, Ntu-8f rear panel connections – ADTRAN 3010 NTU-8 User Manual

Page 11: Table 3, Rear panel connectors

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Installation

61182301E1-5A

5

Rear Panel Connections

Connectors on the rear panel (

Table 3

) provide for the following connections

:

Figure 3

displays the NTU-8F

Rear Panel connections.

Figure 3. NTU-8F Rear Panel Connections

LBK

{

z

z

z

Off
Green
Yellow
Red

No loopback on selected channel
Selected G.703 E1 port in local loopback
Selected G.703 E1 port in remote loopback (PN127 or V.54)
Selected G.703 E1 port in local or remote loopback (PN127 or
V.54); when no port is selected, this becomes an OR’d
summation of all loopbacks on all ports

BERT

{

z

z

z

Off
Green
Yellow
Red

Selected G.703 E1 port BERT not active
Selected G.703 E1 port BER, with no errors
Selected G.703 E1 port BERT active with errors
Selected G.703 E1 port active, but not in sync

Table 3. Rear Panel Connectors

Connector

Type

Function

Fiber Optic

SC-type Optical

Connect single-mode fiber (1310 nm transmit;
1510 nm receive)

Port 1-4

RJ-45

Connect four G.703 E1s

ENET

CAT 5 Modular Jack

Connect 10/100 Ethernet

Craft

DB-8 (RS-232)

used to view menus and upgrade the NTU-8F; No
provisioning or testing can be initiated

External Alarms

DB-15

Connect to six external alarm inputs

–48V, 250 mA

4-pin Terminal Block

Connect to power (NTU-8F has a detachable
mating terminal screw block)

Table 2. Front Panel LEDs (Continued)

Label

Status

Description

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