Charles 3653-61 Скачать руководство пользователя страница 4

Section 365–361–206

4

6.

FactoryĆinstalled optional strap

Alternate position

T&R

T1

XMT GAIN

-4.8dB

XMT

 PRESCRIPTION

GAIN (dB)

0 TO 32.5dB IN

.1dB STEPS

LINE

DROP

J1-A

J1-B

XMT

FILTER

ENCODER

XDATA

XC

(NOTE 18)

(XMT TLP:

+5.2dBm)

INPUT

RANGE +10

TO

-22.5dBm

T  50

R  48

T1&R1

T2

RCV GAIN

+27.7dB

RCV

PRESCRIPTION

GAIN (dB)

0 TO 32.5dB IN

.1dB STEPS

LINE

DROP

J2-A

J2-B

RCV

FILTER

DECODER

RDATA

(RCV TLP:

+5.2dBm)

YC

(NOTE 18)

OUTPUT

RANGE +10

TO

-22.5dBm

T1  8

R1  7

(NOTE 13) 

S4 & S5

(NOTE 15) 

S4 & S5

Y

TP

1  2

2  6

(NOTE 17)

-48VS

-48VR

-48VS

-48VS

CGAW

TP

RELAY

K3

 7.

ReceptacleĆtype optional strap

Alternate position

XXXX

X

NOTES:

 1.

PC board connector pin

 2.

Primary transmission path

 3.

Signal flow direction

4.

Front panel marking

 5.

Open, closed screw option

 8.

All likeĆdesignated points are connected

 9.

N.O.,N.C. relay contact

10.

Ganged switches are indicated by a dashed connection line or alphaĆ

betically suffixed reference designation; a numerical suffix denotes

discrete switch within a package.

11. PC mount test jacks:

MARKING

FUNCTION

T&R LINE  (J1-A)

T&R DROP  (J1-B)

T1&R1 LINE  (J2-A)

T1&R1 DROP  (J2-B)

ACCESS TOWARD CHANNEL UNIT

ACCESS TOWARD CHANNEL UNIT

ACCESS TOWARD OFFICE EQUIPMENT

ACCESS TOWARD OFFICE EQUIPMENT

Figure 5.  3653–61 (Issue 6) 4W TO W/ER Block Diagram (Part 1 of 2)

Содержание 3653-61

Страница 1: ...mission Only with Extended Range 4W TO W ER Channel Unit CONTENTS PAGE Part 1 GENERAL 2 Part 2 INSPECTION 2 Part 3 APPLICATION GUIDELINES 3 Part 4 CIRCUIT DESCRIPTION 5 Part 5 MOUNTING 6 Part 6 INSTAL...

Страница 2: ...to 32 5dB in 0 1dB increments in both the transmit and receive paths Front panel accessible breaking jacks Lead conditioning trunk processing relay controls leads 1 and 2 during carrier failure The br...

Страница 3: ...cations that do not require signal ing The ER feature allows signals to be transmitted and received to accommodate a range of Transmission Level Points TLPs between 10 to 22 5dBm Refer to Figure 2 Fig...

Страница 4: ...ELAY K3 7 Receptacle type optional strap Alternate position XXXX X NOTES 1 PC board connector pin 2 Primary transmission path 3 Signal flow direction 4 Front panel marking 5 Open closed screw option 8...

Страница 5: ...lifting jacks to trans former T1 Transformer T1 provides a balanced input and dc isolation from the line Voice energy from transformer T1 is routed into the XMT GAIN and XMT PRESCRIPTION GAIN circuits...

Страница 6: ...lide the unit into the slot with the front panel in a horizontal up position When the top portion of the hinged front panel is under the front lip of the terminal push down on the front panel until it...

Страница 7: ...ration Leave Jumper Wire YC For an 8 bit decoding scheme in the receive path Cut Jumper Wire For a 7 5 6 bit decoding scheme in the receive path Leave Jumper Wire 7 1 Switches S4 and S5 Transmit and R...

Страница 8: ...witches half of S4 and S5 are prescription controls that provide gain from zero to 32 5dB in increments of 0 1dB to accommodate an output TLP range from 10 to 22 5dBm To adjust the receive path to the...

Страница 9: ...ranty Units Charles Industries Ltd offers a standard repair or exchange service for units either in or out of warranty With this service units may be shipped to Charles Industries for either repair an...

Страница 10: ...B RCV dB 60 14 maximum 200 2 to 0 5 1 to 0 300 0 15 0 15 1000 0 REF 0 REF 3000 0 15 0 15 3200 0 75 to 0 15 0 75 to 0 15 3400 1 5 to 0 1 5 to 0 4000 14 maximum 14 maximum 4600 32 maximum 32 maximum g 1...

Страница 11: ...DISTORTION 40dB maximum from 0 to 4kHz 28dB maximum from 4kHz to 12kHz p TYPICAL CURRENT DRAIN AT 48Vdc 19mA 12 2 Physical The physical characteristics of the 3653 61 are shown in Table 3 Table 3 Phys...

Отзывы: