Receiver ready is an EIA-232-level control signal on a V.35 interface.

CiM-550 IP Enabled Satellite Modem

Rev. 2

Connector Pinouts

CD/CIM550.IOM

Pin

Generic Signal

Direction

EIA-422/

V.35

EIA-232

Circuit

 

Description

 

EIA 530

 

 

No

 

 

 

 

 

 

 

17

Receive Clock A

Modem to DTE

RT A

SCR A

DD

115

 

 

 

 

 

 

 

23

External Carrier Off

DTE to Modem

-

-

-

-

 

(EIA-232 ‘1' or TTL ‘low’ )

 

 

 

 

 

 

 

 

 

 

 

 

24

Transmit Clock A

DTE to Modem

TT A

SCTE A

DA

113

 

 

 

 

 

 

 

Notes: 1

2DO NOT connect signals to pins which are not shown - these pins are reserved for use by the redundancy system.

3‘B’ signal lines are not used for EIA-232 applications.

4For X.21 operation, use the EIA-422 pins, but ignore Receive Clock if the Modem is DTE, and ignore Transmit clocks if the Modem is DCE.

10.2ALARMS CONNECTOR - 15 PIN ‘D’ TYPE MALE

 

Table 10-2. Alarms Connector - 15 Pin ‘D’ Type Male

 

 

Pin

Description

1

Ground

2

Receive AGC voltage

3

Receive Q sample (for constellation display)

 

 

4

Unit Fault Relay – Common

5

Unit Fault Relay – Normally Open

6

Transmit Traffic Relay - Normally Closed

7

Receive Traffic Relay - Common

8

Receive Traffic Relay - Normally Open

9

External Carrier Off input

 

 

10

---- No Connection ----

11

Receive I sample (for constellation display)

12

Unit Fault Relay – Normally Closed

 

 

13

Transmit Traffic Relay – Common

14

Transmit Traffic Relay - Normally Open

15

Receive Traffic Relay - Normally Closed

 

 

Note: ‘Normally Open’ refers to the NON-FAIL state

112