NEC 616 manual ~--.~

I

..

‘*a

3.Fuse Replacement

Replace fuses in accordance with Table 140- 1.

Table 140-l Fuse Specifications For PS-6-1 and KSI-S

Note 1: FI is 1/4”x I-1/4”size normal blown glass tube or ceramic fuse. Buss 3A G 125 V., 4A fuse.

Note2: KSI-S Fl - F8 are 13/64” c 45164” (S mm x 20

mm)size normal blown glass tube fuse. Buss GMA I25 V., O.SA fuse.

Do not install any ‘slow blow” fuses in the ES-6-I

KSU.

140.3Power Requirements

1.AC Input

-117V AC f 1O%, SO or 60Hz + 1O%, single phase

. Max. current draw: 4.OA

*Dedicated outlet separately fused at 15A max.

2.Power Supply Outputs (PS-6 - 1)

DC	Voltage	Max. current
+5v	+ 0.25v	4.OA
+12v	5 O.5V	1.2A
+24V	it 1 .QV	2.OA
+41v	* l.OV	1.4A

3.BLF Console Power Supply

Output Voltage:	9vDC
Max. Output Current:	0.3A

140.4Surge Protection

If an installation is subject to AC power surges it is recommended that the most effective locally available form of surge protection be supplied. CO Lines are protected by the local operating (telephone) company. It is recommend- ed that the most effective locally available form of protec- tion be installed on CO/PBX lines by the local operating (telephone) company.

(~__-___-.~-___./

Note: 7his is NOTa recommendation that more than one set of protectors be installed on CO lines at instaila- tion premises. Improper installation of additional protection can be a serious safety hazard.

140.5 Environmental Conditions

1.Temperature:

pperating:	+32” F- 104°F (O”C-
	40°C)
Recommended long term: +50”F- 90°F
2. Humidity:
Operating	10 - 90 percent

140.6CO/PBX Line Type

CO/PBX Line Type: 2 wire, loop start

140.7Dimensions and Weight

ES-6-I KSU		490(W)	x 195S(D)x 421(H)mm,
W/PSU		40 Lbs (I 8kg)
ET-6-I	TEL	210(W)	x 222(D)	x 82(H)mm,
		2.9 Lbs (1300g)
EB-6-1	BLF	75(W)	x 222(D)	x 82(H)mm,
		1.3 Lbs	(600g)
DP-6-1		100(W)	x 132(D)	x 31.5(H)mm,
Door Phone		0.4 Lbs (200g)

140.8Network and Control

1.Control

.

Control:

Stored program

.

Central

processor:

8085A

.

Microprocessor

in keyset:

pCOM43N

(4 bit

one-

chip microcomputer)

. Clock (KSU-keyset):

33kHz

.

Transmission

data:

9 bits

(from

KSU

to

keyset)

.

Scanning

time

for each

Every

SO msec.

keyset:

.

Number

of

cable

pairs

from 2 pair

wire

for keyset

KSU to

each

station:

.

For

keyset,

one

pair:

Voice

and

signalling

one

pair:

Data

sending and

re-

ceiving

.

For

Door

Phone,

one

pair:

Voice

and

signalling

.

For

BLF,

one

pair:

Data

receiving

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