Characteristics Of Lic Types 11, 12, And 16; Characteristics Of The Lic Types 11, 12 And - IBM 3745 Connection And Integration Manual

The LIC 12 provides one line interface (either ITU-T V.35 or X.21) operating at
speeds up to 2 mbps.
The LIC 11 connects up to 30 lines (ITU-T V.24, V.35, and X.21) at speeds up to
64 kbps, or 8 lines (ITU-T V.35 and X.21) at speeds up to 256 kbps, or a mixture of
these line speeds. All 30 line interfaces, the active remote connectors (ARCs), are
housed in two line connection boxes (LCBs) of 15 slots each. This pair of LCBs is
connected to a LIC 11 via a single cable up to 105 m long.
The LIC 16 provides Primary Rate Interface (PRI) ISDN operating at 2.048 mbps.
If the speed of a line is greater than 64 kbps, selective scanning is used to prevent
the unnecessary scanning of the remaining unused slots in the LCB area.
The maximum operational capacity of the CLP depends on your specific network
and traffic characteristics.

Characteristics of LIC Types 11, 12, and 16

Table B-1. Characteristics of the LIC Types 11, 12 and 16
Protocol PPP, SDLC, Frame Relay, X.25
Line 600 bps to 256 kbps
Speeds
ITU-T V.24, V.25 Bis, V.35, X.21
Interface
Number of
Ports
Cable 1.3, 7, 15, 35, 70, 105
Lengths
(m)
Low-Speed
Lines
ARC V.24
Interface (Note 1)
Line Speed Up to
28.8 kbps
Notes:
1. Other interfaces (such as X.21 Bis) are supported using the appropriate 3745 cable. Refer to the Migration
and Planning Guide, GA33-0183 for part numbers and cable lengths.
2. Depends on the cable used.
3. They are multiplexed over the cable that connects the LIC 11 to a pair of LCBs.
4. Refer to the Migration and Planning Guide, GA33-0183.
For more information about the ARCs, refer to Migration and Planning Guide,
GA33-0183.
B-2
3745 All Models & 3746-900: CIG
LIC 11
SDLC, Frame Relay, X.25
(Note 1)
Up to 30
(Note 3)
Medium-Speed
Lines
V.35 and X.21
Up to
256 kbps
LIC Types
LIC 12
56kbps to 2.048 mbps
V.35 or X.21
(Note 2)
1
(Note 4)
LIC 16
Euro-ISDN on D channel
Frame-relay on B channel
1 D channel at 64 kbps
30 B channel at 64 kbps
G703, G704, G706, G732
1
30