Chapter 2 - Blade Installation and Startup
Chapter 2 2 - 41
2.5.1.1 Connector Pin-Outs on the ESIU
2.5.1.2 LED Indications
To install the ESIU blade:
1. If the 8ESIDB daughter board is to be installed, attach it at this point.
2. Install the ESIU into a slot.
Each CNx01 connector (CN101, CN201, CN301, CN401) is used to connect up to
four digital extensions.
RJ61 Cable Connector -
8ESIU - CN101 (ports 1-4), CN201 (ports 5-8)
16ESIU - CN101 (ports 1-4), CN201 (ports 5-8),
CN301 (ports 9-12), CN401 (ports 13-16)
Pin No. Connection
1 Tip for port 4
2 Tip for port 3
3 Tip for port 2
4 Ring for port 1
5 Tip for port 1
6 Ring for port 2
7 Ring for port 3
8 Ring for port 4
LED Indication
Operation Status Operation Status
Live LED
(green)
Busy LED
(red)
On On Blade Initializing
Flashing
(1 second)
On Blade assignment refused (system
capacity exceeded or software
version incorrect)
Flashing
(1 second)
Trouble found during self-
diagnostics routine.
Flashing
(100 ms)
On Normal Operation At least 1 channel busy
Off All channels idle
Off On Blocked Blade At least 1 channel busy
Off All channels idle
Flashing
(80 ms on/
off x 3/400
ms off)
Downloading firmware
12345678