Multiserver 5000
92
Table 9-7. CCM and 6-Channel CEM (MX215C only)
Local Sync Channel Interface Configured to DCE
Multiserver DCE
Constant Controlled
Pin I/O Carrier Mode Carrier Mode Pin I/O Signal
8 O Held ON. Lead output data. 4 I RTS
11 I . . . Must be ON to enable data 5 O CTS
output.
4 I . . . Ignored (except in 8 O CD
RTS/CTS mode).
25 I Start ring frame is sent to remote when off-to-on transition 22 O RI
is detected. Stop ring frame is sent to remote if no
transition is detected for three seconds.
6 O Change as dictated by remote unit. 20 I DTR
20 I Send changes as detected by remote unit. 6 O DSR
22 O Change as dictated by remote unit. 25 I BUSY
5 O . . . Follows unassigned input . . . . . . Unassigned
input at remote end.
15 O Not affected by carrier mode. . . . . . . External
RX Clock
17 O Not affected by carrier mode. 24 I External
TX Clock
18 I Not affected by carrier mode. 15 O TX Clock
24 I Not affected by carrier mode. 17 O RX Clock
2 I . . . . . . 3 O RD
3 O . . . . . . 2 I TD