Datum Systems M7 Series - Table 2-9 - Serial Interface Overhead Channel - Advanced;Ibs Custom Mux - RS-232 (J10)

M7/M7L/M7LT Modular Satellite Modem Maintenance
M7/M7L/M7LT - Rev. 0.05 2-11
6
ESC Rcv Clock- (A)
RS-485 Standard Mode
Connection (synchronous)
Output
7
Ground
Ground
Ground
8
ESC Rcv Clock+ (B)
RS-485 Standard Mode
Connection (synchronous)
Output
9
Primary Interface
External Clock+ (B)
FIFO External Clock input ‘+’
or ‘B’ line. RS422 level
Input
15
Ground
Ground
Ground
21
Primary Interface
External Clock- (A)
FIFO External Clock input ‘-‘ or
‘A’ line. RS422 level
Input
Table 2-9 – Serial Interface Overhead Channel - Advanced/IBS Custom Mux - RS-232 (J10)
J10
Pin #
Signal Name
Use
Direction
1
Ground
All
Ground
2
ESC Send Data
RS-232 Advanced/Custom
Mode Connection (sync)
Input
3
ESC Rcv Data
RS-232 Advanced/Custom
Mode Connection (sync)
Output
4
ESC RTS
RS-232 Advanced/Custom
Mode Connection (sync)
Input
5
ESC CTS
RS-232 Advanced/Custom
Mode Connection (sync)
Output
6
ESC DSR
RS-232 Advanced/Custom
Mode Connection (sync)
Output
7
Ground
Ground
Ground
8
ESC DCD
RS-232 Advanced/Custom
Mode Connection (sync)
Output
9
Primary Interface
External Clock+ (B)
FIFO External Clock input ‘+’
or ‘B’ line. RS422 level
Input
11
ESC Alarm Out A
Relay Common
Backward Alarm A, Form C
Common
Output
12
ESC Alarm Out B
Relay N.O.
Backward Alarm B, Form C
Normally Open
Output
13
ESC Alarm Out B
Relay N.C.
Backward Alarm B, Form C
Normally Closed
Output
14
ESC Alarm In A
Alarm A Relay, Low Activates
Remote ESC
Input, TTL, Internal 1mA Pull-
Up
15
Ground (Return for
ESC Alarm In A)
Alarm A Relay, Ground
Ground
16
ESC Alarm In B
Alarm B Relay, Low Activates
Remote ESC
Input, TTL, Internal 1mA Pull-
Up
17
Ground (Return for
ESC Alarm In B)
Alarm B Relay, Ground
Ground
18
RS-232 Input
Not Currently Used
Input
20
ESC DTR
RS-232 Advanced/Custom
Mode Connection (sync)
Input
21
Primary Interface
External Clock- (A)
FIFO External Clock input ‘-‘ or
‘A’ line. RS422 level
Input
23
ESC Alarm Out A
Relay N.O.
Backward Alarm A, Form C
Normally Open
Output