Table 3-1. Rear Panel External Connections - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Rear Panel Connectors and Pinouts
Connector Group
(Sect. Ref.)
IF
(Sect. 3.2)
Rx
Tx
Terrestrial Data Data Interface
(Sect. 3.3)
G.703
Data
10/100 Ethernet M&C
10/100 Ethernet Traffic
Utility Remote Control
(Sect. 3.4)
Alarms
1:1 Control
External Reference
Serial Console
Power/Ground AC
(Sect 3.5)
DC (Optional)
Ground
The European EMC Directive (EN55022, EN50082-1) requires using properly shielded
cables for DATA I/O. These cables must be double-shielded from end-to-end, ensuring a
continuous ground shield.

Table 3-1. Rear Panel External Connections

Name Connector Type
CDM-570L: Type 'N'
female (L-Band)
CDM-570: BNC female
(70/140MHz band)
CDM-570L: Type 'N'
female (L-Band)
CDM-570: BNC female
(70/140MHz band)
25-pin Type 'D' female
Balanced 15-pin Type 'D' female
Unbalanced Out BNC 75Ω female
Unbalanced In BNC 75Ω female
RJ-45 female
RJ-45 female
9-pin Type 'D' male
15-pin Type 'D' male
9-pin Type 'D' female
BNC female
RJ-11 female
See Sect. 3.5.1
See Sect. 3.5.2
#10-32 stud
3–2
MN/CDM570L.IOM
Function
IF Input
IF Output
Serial synchronous data Input/Output
G.703
T1 (1544 kbps) / E1 (2048 kbps)
Receive G.703 E1 (2048 kbps)
Transmit G.703 E1 (2048 kbps)
10/100 BaseT management and data
(w/optional IP Module) Ethernet Traffic
Serial Remote Interface (EIA-232/-485)
Form C Alarms (relay closures)
Connection to External 1:1 Controller
Input/Output
(w/optional IP Module) EIA-232 Serial Console
for CDM-570L/IP Module management
Chassis power
Common Chassis Ground
Revision 12