User manual

Chapter 5 Config Menu TSU ACE User Manual

Figure 5-2. Network Submenu

Clock Sources and Timing

The TSU ACE operates from various clock sources, permitting it to perform properly in many different

applications. Use the

ONFIG

> N

ETWORK

(NI) > 5)C

LOCK

OURCE

: menu to set the network interface

clocking options (network, DTE, or internal timing). See the descriptions for Network Timing on page 39,

DTE Timing on page 39, and Internal Timing on page 40.

Table 5-1. Network Interface Submenus

Submenu Description

FORMAT Sets the frame format for the NI.

Choices: D4, ESF, AUTO

a D4 is equivalent to Superframe Format (SF).

CODE

Sets the line code for the NI.

Choices: AMI, B8ZS

YEL ALRM

Enables and disables the transmitting of yellow alarms.

Choices: ENA (enable), DISA (disable)

XMIT ALRM

Enables and disables the transmitting of performance report message (PRM) data on the

facility data link (FDL). The PRM data continues to be collected even if XMIT PRM is disabled

(possible only with ESF Format).

Choices: ON, OFF

CLOCK SOURCE

b For more information on clock sources and timing, see Clock Sources and Timing on page 38.

Selects the clock source for transmission toward the network from the NI.

Choices: NETWORK, DTE, INTERNAL

SET LBO

Selects the line build-out (amount of attenuation, in dB) for the network interface.

Choices: 0, 7.5, 15.0, 22.5

The clocking option selected always designates the clock source for transmission.

Clocking necessary for receiving data is always recovered from incoming data.