Datum Systems M7 Series - Table 2-10 - Serial Interface Overhead Channel - Advanced;Ibs Custom Mux - RS-485 (J10)

Maintenance M7/M7L/M7LT Modular Satellite Modem
2-12 M7/M7L/M7LT - Rev. 0.05
24
ESC Alarm Out A
Relay N.C.
Backward Alarm A, Form C
Normally Closed
Output
25
ESC Alarm Out B
Relay Common
Backward Alarm, Form C
Normally Common
Output
Table 2-10 – Serial Interface Overhead Channel - Advanced/IBS Custom Mux - RS-485 (J10)
J10
Pin #
Signal Name
Use
Direction
1
Ground
All
Ground
2
ESC Send Data+ (B)
RS-485 Advanced/Custom
Mode Connection (sync)
Input
3
ESC Rcv Data+ (B)
RS-485 Advanced/Custom
Mode Connection (sync)
Output
4
ESC Send Data- (A)
RS-485 Advanced/Custom
Mode Connection (sync)
Input
5
ESC Rcv Data- (A)
RS-485 Advanced/Custom
Mode Connection (sync)
Output
6
ESC DCD- (A)
RS-485 Advanced/Custom
Mode Connection (sync)
Output
7
Ground
Ground
Ground
8
ESC DCD+ (B)
RS-485 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-485 Input+ (B)
Not Currently Used
Input
20
RS-485 Input- (A)
Not Currently Used
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
24
ESC Alarm Out A
Relay N.C.
Backward Alarm A, Form C
Normally Closed
Output
25
ESC Alarm Out B
Relay Common
Backward Alarm, Form C
Normally Common
Output
NOTE: ESC Alarm In/Out Not Available with IBS Standard Mux
NOTE: ESC Send Clock Not Available with RS-485