Serial module for use when running Raw, Hybrid, IP over serial (HDLC) and Serial Over IP DTE mode that provides single DIN connector (RS-530/V.35). Used with the VX900 only; this port is not applicable to the VX900C.

See the Serial Interface Card Cables Specifications topic for additional cable and connector specifications.

The following DTE cables are required for the one-port serial interface card.

Standard Interface Cables

Part number

Description

035598

EIA530 DTE cable

035555

V.35 DTE cable

Serial WAN Connectors for One-port Serial Card

Two cable types can be used with the one-port Serial WAN interface card:

EIA530 Cable

The EIA 530 Cable assembly is constructed with one end of the cable terminated in a high-density 26-way HD-Type plug and the other end terminated in a 25-way D-Stub plug. This cable enables the connection of the serial WAN interface card with an EIA 530 DCE device. The connections are shown below.

Interface Signal Name

HD26--Way Pin Contact Male

DB25 Pin contact Male

EIA 510 Signal

Signal Pair

TXa

2

2

TD (A)

Pair

TXb

11

14

TD (B)

 

Sa

3

15

TSETC (A)

Pair

Sb

12

12

TSETC (B)

 

RXa

4

3

RD (A)

Pair

RXb

13

16

RD (B)

 

Ia

6

5

CTS (A)

Pair

Ib

15

13

CTS (B)

 

Ca

5

4

RTS (A)

Pair

Cb

14

19

RTS (B)

 

GND

9

7

GND

 

SHIELD

1

1

SHIELD

 

CABLE*In

Link HD26 Pin 10 to Pin 18

 

 

 

Crypto Resync

VX supports crypto resynchronization on EIA-530 interfaces. When configured for crypto resynchronization, VX send HDLC keep alive messages when the line is operationally DOWN. Use the following guidelines to set up the hardware connection for crypto resynchronization on a VX system:

Crypto Resynchronization Specifications

Interface Signal Name

HD-26 PIN

EIA-530 PIN

EIA-530 Signal

V.35 PIN

Crypto PIN

Crypto PIN Name

TXD+

2

2

TD+

P

2

TXPT+

TXD-

11

14

TD-

S

14

TSPT-

TXC+

7



Y



TXC-

16



AA



S+

3

15

TSETC+


15

RSC+

S-

12

12

TSETC-


12

RSC-

RXD+

4

3

RD+

R

3

RXPT+

RXD-

13

16

RD-

T

16

RXPT-

I+

6

5

CTS+




I-

15

13

CTS-




CTS

23



D



C+

5

4

RTS+


18

*Resync+/Prep+

C-

14

19

RTS-


21

*Resync-/Prep-

RTS

23



C



DTR

25



H

18

*Resync+/Prep+

DCD

26



F



GND

9

7

GND

B



SHIELD

1

1

SHIELD

A



CABLE*IN

Link HD26 Pin 10 to 18






Connect either C+ or DTR to PIN 18 on the crypto device. Connection to both, simultaneously, is not allowed.

V.35 Cable

This cable is constructed with one end of the cable terminated in a high density 26-way HD-type plug and the other end terminated in a MRAC-34 plug. The connections are shown below.

V.35 Cable Connector Pinouts

Interface Signal Name

HD-26 Way Pin Contact Male

MRAC-34 Pin Contact Male

Twisted Pairs

TXDa

2

P

Pair

TXDb

11

S

 

TXClka

7

Y

Pair

TXClkb

16

AA

 

RXDa

4

R

Pair

RXDb

13

T

 

RXClka

8

V

Pair

RXClkb

17

X

 

RTS

23

C

 

CTS

24

D

 

DTR

25

H

 

DCD

26

F

 

GND

9

B

 

SHIELD

1

A

 

CABLE*IN

Link HD26 Pin 10 to Pin 18