NEC Univerge SV9100 System Hardware Manual page 332

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The GCD-4ODTA Tie Line blade is an out band dial type analog tie line

interface blade. This blade supports system connections to either 2-wire

(four lead, tip/ring) or 4-wire (six lead, tip/ring/tip 1/ring 1) E&M signaling tie

lines (determined in Program 10-13). System programming is used also to

select the connection types with Type I or Type V. The GCD-4ODTA

consumes four ports ranging between ports 001~400 (SV9100). Each blade

requires one universal slot and provides:

Four analog 4-circuit tie line interfaces

Two Blade status LEDs

One switch per circuit to determine the circuit type

Refer to the following tables for maximum upgrade capacities of the

GCD-4ODTA blade:

Table 2-6 SV9100 Maximum 9.5" Gateway and 19" System

Capacities – Blades on page 2-12

Table 2-7 SV9100 Maximum 9.5" Base and Expansion System

Capacities – Blades on page 2-14

Installation

Install the GCD-4ODTA into a slot in the chassis.

Limitation depends on the connecting Router,

Multiplexer or Exchange. If the UNIVERGE SV9100 is

connected to another UNIVERGE SV9100 directly,

there is up to 1,500 ohms loop resistance (including

When a router or multiplexer is connected instead of a

trunk, the SG terminal of the router or multiplexer must be

connected to the FG grounding terminal on the

UNIVERGE SV9100 chassis. When a tie line trunk is

connected, the FG terminal must be connected to the

ground. If the FG terminal is not connected correctly, the

signal may fail.

When tie lines are connected to the system, be careful of the

Tip and Ring polarity.

Installing the SV9100 Blades

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