ADCP-50-304 • Issue 19 • June 1999 • Section 3: PatchSwitch V.35

Table 3-2. Normal Pin Assignments, continued

 

 

 

SIGNAL

DB-25

V.35 PIN

NAME

ORIGIN

DESCRIPTION

CONNECTOR PIN

V

RC (+)

DCE

Rec Clck (+)

17

 

 

 

 

 

X

RC (–)

DCE

Rec Clck (–)

18

 

 

 

 

 

Y

TC (+)

DCE

Trans Clck (+)

15

 

 

 

 

 

AA

TC (–)

DCE

Trans Clck (–)

16

 

 

 

 

 

MM

BSY

DCE

Busy Signal

25

 

 

 

 

 

K, L, M, N, Z, BB, CC,

 

 

Unassigned Pins

 

DD, EE, FF, HH, JJ, KK,

 

 

 

 

LL, NN

 

 

 

 

 

 

 

 

 

3 FUNCTION SELECTION-MODULES

Several optional items shown in Table 3-3should be considered before any PSM-16 or PSM-18 modules are placed into service. Factory settings are noted, refer to Figure 3-3table for item locations. If factory settings are acceptable, no action is required.

Table 3-3. Optional Items on the Module

ITEM

DESCRIPTION

FUNCTION

 

 

 

A

Trans Clk Source

DTE

DCE

 

 

W,U

AA, Y

 

(Factory Setting)

 

X

 

 

 

 

 

 

B

Alarm Sig Source

TD RD RTS CTS RC DTR DCD TC

 

(Factory Setting)

 

 

 

 

 

 

C

Alarm Reset Polarity

ALM+

ALM

 

(Factory Setting)

 

X

 

 

 

 

D

Alarm Reset

AUTO

MANUAL

 

 

NOT-LCHD

(LCHD)

 

(Factory Setting)

 

X

 

 

 

 

E

Alarm Delay

NO

YES

 

(Factory Setting)

*SW pos 8 7 6 5 4 3 2 1

 

 

X

*This screwdriver adjustment is made at the rotary switch on the face of the module near the bottom. Note the length of the lines around the switch, the longer the line, the greater the time delay. Switch position 8 is straight up.

Sw Pos

TD

8 None

 

762.5 msec

6250 msec

5500 msec

41.0 sec

38.0 sec

232.0 sec

164.0 sec

Page 3-4

© 1999, ADC Telecommunications, Inc.