Cisco CISCO2650 - 2650 Router Hardware Installation Manual page 311

Chapter 28 Connecting Cisco High-Density Extension Modules
Table 28-4 RJ-21 Connections for the Cisco High-Density Extension Module (continued)
RJ-21
Pin Hardware Component
42 EM1
17
43
18
44
19
45
20
46
21
47
22
48
23
49
24
50
25
1. During power failures or when router power is off, emergency voice connections can be made through power-fail ports (PFP) on the EM-HDA-6FXO
expansion module.
If there is only one EM-4BRI-NT/TE and it is installed in EM1, number the ports x/0 through x/3.
Note
OL-2485-20
Base Card
Ports Expansion Module Ports
8FXS/DID
EM-HDA-8FXS
— Port 16 Tip
Port 16 Ring
Port 17 Tip
Port 17 Ring
Port 18 Tip
Port 18 Ring
Port 19 Tip
Port 19 Ring
Port 20 Tip
Port 20 Ring
Port 21 Tip
Port 21 Ring
Port 22 Tip
Port 22 Ring
Port 23 Tip
Port 23 Ring
Unused
Unused
Cisco High-Density Extension Module Cable Pinouts
EM-HDA-3FXS/4FXO EM-HDA-6FXO
FXS Port 16 Tip Port 16 Tip
FXS Port 16 Ring Port 16 Ring
FXS Port 17 Tip Port 17 Tip
FXS Port 17 Ring Port 17 Ring
FXS Port 18 Tip Port 18 Tip
FXS Port 18 Ring Port 18 Ring
Unused Port 19 Tip
Unused Port 19 Ring
FXO Port 20 Tip Port 20 Tip
FXO Port 20 Ring Port 20 Ring
FXO Port 21 Tip Port 21 Tip
FXO Port 21 Ring Port 21 Ring
FXO Port 22 Tip Unused
FXO Port 22 Ring Unused
FXO Port 23 Tip PFP Tip
FXO Port 23 Ring PFP Ring
Unused Unused
Unused Unused
Cisco Network Modules Hardware Installation Guide
EM-4BRI-NT/TE
Port x/4 SX–
Port x/4 SX+
Port x/4 SR-
Port x/4 SR+
Port x/5 SX–
Port x/5 SX+
Port x/5 SR-
Port x/5 SR+
Port x/6 SX–
Port x/6 SX+
Port x/6 SR-
Port x/6 SR+
Port x/7 SX–
Port x/7 SX+
Port x/7 SR-
Port x/7 SR+
Unused
Unused
28-11