NEC Univerge SV9100 - Installation

UNIVERGE SV9100 Issue 1.2
System Hardware Manual 4 - 81
 Four analog 4-circuit tie line interfaces
 Two Blade status LEDs
 Two straps and one switch per circuit to determine the circuit type
Table 4-44 GCD-4ODTB Maximum Upgrade Capacities provides the
maximum capacities for the ODT blades when they are upgraded.
5.7.2 Installation
1. Set the straps for either the 2-wire or 4-wire. Refer to Figure
4-22 GCD-4ODTB Blade on page 4-80.
2. Install the GCD-4ODTB into a slot in the chassis.
Table 4-44 GCD-4ODTB Maximum Upgrade Capacities
19” Chassis
with CPU
19” Chassis
without CPU
19” Chassis
x4
Networked
Chassis
5 6 23 50
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 system).
 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.