NEC nd-20292 manual TSW-E Switch Layout 200, CPU-EC ETU DIP Switch

provided in Section 430 of the Installation Service Manual.

When the CPU-E( ) ETU is removed for long term storage, set the SW2 switch to OFF. This will prevent the battery from constantly discharging. The battery, when fully charged, will retain memory contents for approximately 7 days.

Switch 1 (SW11 is the reset switch. When depressed,

this momentary switch interrupts all service in

progress causing a second initialization. This switch should not be used in an operating system unless absolutely necessary. The CPU-E( 1 ETU must be installed in the CPU slot of the ESE-32B-1 CCU.

B.CPU-EC( ) ETU DIP SWITCH

The CPU-EC( ) ETU has a third switch (SW3) that is made up of three DIP switches (1, 2, and 3). Only dip switch 1 is used. When DIP switch 1 is in the OFF position, it is in the MF mode. When DIP switch 1 is in the ON position, it is in the KF mode.

The MF mode allows a trunk to be seized by two methods:

1.Depressing a line Key.

2.Dialing an access code.

The KF mode allows trunk access by using Line keys only.

k

ND-20292

CHAPTER 2

APRIL, 1990

The mode selected, (MF or KF), must correspond to the

applicable FCC Registration Number (Refer to Chapter 1 of this manual).

C.TSW-E ETU

The TSW-E ETU (refer to Figure 200-18) contains three switches, two LEDs, one connector, and two RCA phono plugs. Switch 1 (SWl) is the reset switch. Depression of this momentary switch causes all service in progress in the ESE-32B-1 CCU, to be interrupted. This switch should not be used in an operating system unless absolutely necessary.

The LEDs indicate module memory working status. Under normal operating conditions, they are fluttering to indicate memories being activated. When SW1 is depressed, the LEDs momentarily turn OFF. Anytime the CCU is disabled, the LEDs are OFF.

Connector CN2 is used for data transmission between the TSW-E and the MMC-E ETUs; the cable provided on the MMC-E ETU is plugged into this connector.

MOH IN/OUT (SW2) is used to select the MOH source from either internal or external. When the music chip is used for MOH source, set this switch to the IN position. If an external MOH source is connected, set this switch to the OUT position. (For external MOH source connection, instructions are provided in Section 270, Optional Equipment Connection).

MOH

5.~2 5 El MOH

IN /OUT

swj 5 IXI MELODY

a, II2

.. ........ .. ..
I.. .,.,,, ,,...I
i: :::::::: :::j	I
	c....... . .,,-J. .
	4	I. 4
	. . . . . . . . .

-

4

Figure 200-18 TSW-E Switch Layout

200 - 23