Alcatel-Lucent 7750 SR-a4, Installation Manual, Page: 216 / 232

CPM-a Port Types
216 7750 SR-a4 and SR-a8 Installation Guide
OES Port
The CPM-a supports one Open Enterprise Server (OES) 10/100 Mb/s Ethernet RJ-45 port.
The OES port is reserved for future use.
Sync-E/1588v2
The CPM-a supports one Sync-E/1588v2 timing port, which uses an RJ-45 connector. The
Sync-E/1588v2 port is reserved for future use.
BITS Port
The BITS port is provisioned with an RJ-45 jack and used for the network clock source. Use
shielded cable when connecting to the BITS port.
Figure 80 shows the BITS port pin
numbers.
Figure 80: BITS Port Pin Numbers
Table 110 specifies the BITS port connector pinouts.
Table 110: BITS Port Pinouts—RJ-45 Female
Pin Signal Direction Description
1 RXRING Input Receive Ring Signal
2 RXTIP Input Receive Tip Signal
3 NC — Not connected
4 TXRING Output Transmit Ring Signal
5 TXTIP Output Transmit Tip Signal
Pin 8 Pin 1
1959 3