NEC UX5000 - Digital Station (8 ESIDB) Daughter Board (Figure 2-19) - P;N 0911076

2 - 42 Chapter 2
Chapter 2 - Blade Installation and Startup
2.5.2 Digital Station (8ESIDB) Daughter Board (Figure 2-19) - P/N 0911076
The 8ESIDB daughter board provides 8 digital extensions. This daughter board is installed on the 8ESIU blade
(P/N 0911077) and expands the port capacity for the combined blades by 8 ports.
The 8ESIDB provides:
● 8 digital extension circuits (used for digital telephones, DSS consoles, SLTAD adapters, 2PGDAD
adapters)
● These ports provide -48V feeding.
● Connector for 8/16ESIU blade
The ESIDB can be installed in any 8ESIU blade (P/N 0911077) in the systemand up to a maximum of 20
ESIDB blades installed per 4-chassis system, providing up to 320 digital ports when combined with the 8ESIU
blade. A maximum of 16 2B channels perchassis is possible. With CygniLink and a 7-chassis system, the
maximum number of blades is 32.
Per 19” chassis, there is a maximum of 80 digital or analog station ports allowed.
Each of the CNx01 connectors provide connection to 4 digital station ports.
Figure 2-21: 8ESIDB DAUGHTER BOARD
The 8ESIDB cannot be used with the prior version of the 8ESIU blade,
P/N 0911036, or the 16ESIU blade, P/N 0911038.
A
na
log Station
I/F
C
ir
cuit #4
A
nalog Stati
on
I/F
C
ircuit #3
Ana
log
Station
I
/
F
Circuit #2
A
nalo
g
Stati
on
I/F
Circu
it
#
1
CN101(8ESIU)
Key Terminal
Interface
#1- #4
CN201(8ESIU)
Key Terminal
Interface
#5- #8
CN301(ESIDB)
8ESIU Interface
#9-#12
CN301(ESIDB)
8ESIU Interface
#13-#16
Daughter Board I/F
(for 8ESIU)
Daughter Board I/F
(for ESIDB)
Common
Control
Circuit
CN1
BUSY LED
(Status for
Trunk Lines)
ON: Trunk(s) in Use
OFF: Idle
LIVE LED
(Status LED)
8
7
6
5
2
1
Ringer / MW lamp pow
er
Circuit
Analog Station I/F
Circuit #1
Analog Stati
on I/F
Cir
cuit #2
Analog Station I/F
Circuit #3
Analog Station I/F
Circuit #4
Pin Number
Location
RJ61
Connector