ADTRAN ESU 120e user manual ESU120E Interfaces, Network Interfaces, Network Test Interface

Chapter 2. Installation

ESU120E INTERFACES

The ESU 120e is equipped with an Nx56/64 data port, a G.703 drop interface, an option slot, management interfaces, and an E1 inter- face in the rear panel. See Figure 2-2.

PC or Modem

10BaseT LAN

Control	Chain	Chain	Chain
Input	Output	Input	Output

	NI ESU 120e		NI ESU 120e
Network	Drop		Drop
	Nx56/64	Option	Nx56/64	Option

PBX	V.35	PBX-1	V.35
			RS530, V.11
	RS530, V.11

Figure 2-2. ESU 120e Interfaces

Network Interfaces

The Network Interface (NI) port provides the connection to the E1. This port complies with the applicable ANSI and CCITT standards. Either the 120Ω DB15 or the 75Ω BNC interface may be used for the Network Interface. The 75/120 selection must be made with the front panel menus. For more information see Wiring on page B- 1.

Network Test Interface

The MON test jack provides a bridged access jack for non-intrusive monitoring of the incoming E1.

Nx56/ 64 Serial Interface

The Nx56/64 provides a serial interface that operates from 56kbps to 1.984Mbps. The Nx56/64 can be configured as a V.35, V.36, EIA- 530, or V.11 electrical interface through the front panel menus. This port provides 511 pattern generation and detection, as well as remote loopback capability.

61200420L1-1 ESU 120e User Manual 2-5