Timing options -6 – Verilink M1-3 (880-503136-001) Product Manual User Manual

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M1-3 Configuration Options

3-6

Verilink M1-3 User Manual

Table 3-3 M1-3 T1 Port Configuration Menu

Timing Options

Select Timing Options from the M1-3 Configuration Menu to view
the current shelf timing table. You can set the shelf timing master,
secondary, and tertiary timing sources.

Figure 3-5

shows the M1-3

set as the current timing master.

NOTE: If you make any changes in this menu, the changes affect the

timing for all modules in the shelf.

Set the timing synchronization to one of the following options:

•

network

•

external

•

internal

Set the auto restore options to Yes or No.

Figure 3-5 Tn Timing Options Menu

Command

Description

Port—The DS3 slot assigned to this T1. The value is 1—28.

Service Mode

—

displays the Mode Control options submenu.

Frame Format: Choose SF (Superframe) or ESF

(Extended

Superframe Format) as dictated by what your installation

supports.

1) SF—Provides traffic/signaling and framing.

2) ESF—T1 framing standard providing frame

synchronization, cyclic redundancy check, traffic signaling,

data checking, and link bits (Facility Data Link, or FDL).

Trunk Condition bits—Used to signal a PBX when line service is

unavailable for voice. Available options are 0/0, 1/0, 0/1, 1/1.

Note: This option can only be changed when the ports are in

normal service. The act of conditioning the bits must stop

before the state change can occur.

Exit this menu.

-- M1-3 CONFIGURATION MENU (TIMING OPTIONS)--

Current shelf timing source: card 6, internal (primary)

Source Slot Number Synchronization Auto Restore

Primary PC) 6 PS) internal PA) yes

Primary PC) 6 PS) internal PA) yes
Secondary SC) 4 SS) internal SA) yes

Secondary SC) 4 SS) internal SA) yes

Secondary SC) 4 SS) internal SA) yes
Tertiary TC) 7 TS) internal TA) yes

Tertiary TC) 7 TS) internal TA) yes

X) exit this menu